bonjour
ex 73
3/4-2/3*15/8=3/4-30/24=3/4-5/4=-2/4=-1/2
6/5-7/14÷5/7=6/5-7/14*7/5=6/5-49/70=12/10-7/10=5/10=1/2
(5/2-7/4)÷3/8=10/4-7/4=3/4*8/3=24/12=2
ex 74
2/5+1/4=8/20+5/20=13/20
2/5-1/4=8/20-5/20=3/20
13/20÷3/20=13/20*20/3=260/60=20*13/20*3=13/3
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bonjour
ex 73
3/4-2/3*15/8=3/4-30/24=3/4-5/4=-2/4=-1/2
6/5-7/14÷5/7=6/5-7/14*7/5=6/5-49/70=12/10-7/10=5/10=1/2
(5/2-7/4)÷3/8=10/4-7/4=3/4*8/3=24/12=2
ex 74
2/5+1/4=8/20+5/20=13/20
2/5-1/4=8/20-5/20=3/20
13/20÷3/20=13/20*20/3=260/60=20*13/20*3=13/3