# FRACCIONES...

Flashcards by , created about 5 years ago

## Suma y Resta de FRACCIONES: a/b ± c/d = (ad ± bc) / bd Con reducción, e impropia (>1) en mixto.

2088
78
2
 Question Answer $$\frac {2}{3}$$ + $$\frac {3}{4}$$ = = $$\frac {8+9}{3·4}$$=$$\frac {17}{12}$$=$$1\frac {5}{12}$$ $$\frac {1}{4}$$ + $$\frac {2}{3}$$ = = $$\frac {3+8}{4·3}$$=$$\frac {11}{12}$$ $$\frac {1}{2}$$ + $$\frac {3}{4}$$ = = $$\frac {4+6}{2·4}$$=$$\frac {5}{4}$$=$$1\frac {1}{4}$$ $$\frac {1}{2}$$ + $$\frac {1}{3}$$ = = $$\frac {3+2}{2·3}$$=$$\frac {5}{6}$$ $$\frac {2}{3}$$ + $$\frac {1}{2}$$ = = $$\frac {4+3}{3·2}$$=$$\frac {7}{6}$$=$$1\frac {1}{6}$$ $$\frac {1}{3}$$ + $$\frac {3}{4}$$ = = $$\frac {4+9}{3·4}$$=$$\frac {13}{12}$$=$$1\frac {1}{12}$$ $$\frac {3}{4}$$ + $$\frac {1}{5}$$ = = $$\frac {15+4}{4·5}$$=$$\frac {19}{20}$$ $$\frac {2}{5}$$ + $$\frac {1}{3}$$ = = $$\frac {6+5}{5·3}$$=$$\frac {11}{15}$$ $$\frac {2}{5}$$ + $$\frac {1}{2}$$ = = $$\frac {4+5}{5·2}$$=$$\frac {9}{10}$$ $$\frac {1}{3}$$ + $$\frac {1}{5}$$ = = $$\frac {5+3}{3·5}$$=$$\frac {8}{15}$$ $$\frac {2}{3}$$ + $$\frac {3}{5}$$ = = $$\frac {10+9}{3·5}$$=$$\frac {19}{15}$$=$$1\frac {4}{15}$$ $$\frac {3}{5}$$ + $$\frac {1}{3}$$ = = $$\frac {9+5}{5·3}$$=$$\frac {14}{15}$$ $$\frac {3}{5}$$ – $$\frac {1}{3}$$ = = $$\frac {9–5}{5·3}$$=$$\frac {4}{15}$$ $$\frac {2}{3}$$ – $$\frac {1}{4}$$ = = $$\frac {8–3}{3·4}$$=$$\frac {5}{12}$$ $$\frac {3}{4}$$ – $$\frac {2}{3}$$ = = $$\frac {9–8}{4·3}$$=$$\frac {1}{12}$$ $$\frac {3}{4}$$ – $$\frac {1}{2}$$ = = $$\frac {6–4}{4·2}$$=$$\frac {2}{8}$$=$$\frac {1}{4}$$ $$\frac {1}{2}$$ – $$\frac {1}{3}$$ = = $$\frac {3–2}{2·3}$$=$$\frac {1}{6}$$ $$\frac {2}{3}$$ – $$\frac {1}{2}$$ = = $$\frac {4–3}{3·2}$$=$$\frac {1}{6}$$ $$\frac {3}{4}$$ – $$\frac {1}{3}$$ = = $$\frac {9–4}{4·3}$$=$$\frac {5}{12}$$ $$\frac {3}{4}$$ – $$\frac {1}{5}$$ = = $$\frac {15–4}{4·5}$$=$$\frac {11}{20}$$ $$\frac {2}{5}$$ – $$\frac {1}{3}$$ = = $$\frac {6–5}{5·3}$$=$$\frac {1}{15}$$ $$\frac {1}{2}$$ – $$\frac {2}{5}$$ = = $$\frac {5–4}{2·5}$$=$$\frac {1}{10}$$ $$\frac {1}{3}$$ – $$\frac {1}{5}$$ = = $$\frac {5–3}{3·5}$$=$$\frac {2}{15}$$ $$\frac {2}{3}$$ – $$\frac {3}{5}$$ = = $$\frac {10–9}{3·5}$$=$$\frac {1}{15}$$