Bonjour (⊙_⊙)?
3/4 - 2/7 ÷ 5/8
= 3/4 - 2/7 x 8/5
= 3/4 - 2x8/7x5
= 3/4 - 16/35
= 105/140 - 64/140
= 41/140
2/3 x 7/5 + 3/5
= 2x7/3x5 + 3/5
= 14/15 + 3/5
= 14/15 + 9/15
= 23/15
(7/5 + 2/15) ÷ 3
= (21/15 + 2/15) ÷ 3
= 23/15 ÷ 3
= 23/15 x 1/3
= 23x1/15x3
= 23/45
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Bonjour (⊙_⊙)?
3/4 - 2/7 ÷ 5/8
= 3/4 - 2/7 x 8/5
= 3/4 - 2x8/7x5
= 3/4 - 16/35
= 105/140 - 64/140
= 41/140
2/3 x 7/5 + 3/5
= 2x7/3x5 + 3/5
= 14/15 + 3/5
= 14/15 + 9/15
= 23/15
(7/5 + 2/15) ÷ 3
= (21/15 + 2/15) ÷ 3
= 23/15 ÷ 3
= 23/15 x 1/3
= 23x1/15x3
= 23/45