Question

calcule 7/12 + 11/20 =​

Answer 1

7/12+11/20=

7.(20)+11.(12)/12.(20)=

140+132/240=

272/240= 272÷2/240÷2

272/240=136/120

272/240=136÷2/120÷2

272/240=68/60

272/240=68÷2/60÷2

272/240=34/30

272/240=34÷2/30÷2

272/240=17/15

Espero ter ajudado!