bonjour
a) 15/20 + 2 /8
= 5/4 + 1 /4 = 6 /4 = 3 /2
b ) 25/8 + 7 /24 = 75/24 + 7/24 = 82/24 = 41/12
c) 19/28 + 11 /21 = 57/84 + 44/84 = 101/84
d) 3/7 + 9 /8 = 24/56 + 63/56 = 87/56
e) 25/8 + 11/20 + 1/4 = 100/40 + 22/40 + 10/40 = 132/40 = 33/10
f = 9/5+ 2 /7 - 3 /8 = 504/ 280 + 80/280 - 105/280 = 479/280
g ) 29/2 + 13/10 + 32 /5 = 145/10 + 13/10 + 64 /10 = 222/10 = 111 /5
h ) 12/5 + 7/45 + 6 /9 = 108/45 + 7 /45 + 30/45 = 145/45 = 29/9
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bonjour
a) 15/20 + 2 /8
= 5/4 + 1 /4 = 6 /4 = 3 /2
b ) 25/8 + 7 /24 = 75/24 + 7/24 = 82/24 = 41/12
c) 19/28 + 11 /21 = 57/84 + 44/84 = 101/84
d) 3/7 + 9 /8 = 24/56 + 63/56 = 87/56
e) 25/8 + 11/20 + 1/4 = 100/40 + 22/40 + 10/40 = 132/40 = 33/10
f = 9/5+ 2 /7 - 3 /8 = 504/ 280 + 80/280 - 105/280 = 479/280
g ) 29/2 + 13/10 + 32 /5 = 145/10 + 13/10 + 64 /10 = 222/10 = 111 /5
h ) 12/5 + 7/45 + 6 /9 = 108/45 + 7 /45 + 30/45 = 145/45 = 29/9