please please please please please please please help me
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(a) 32/5+23/11×22/15
342+115/55× 22/15
457/55×22/15
914/75
(b) 3/7×28/15 ÷ 14/5
4/15 × 5/14
4/14
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Step-by-step explanation:
(a) (32/5 + 23/11) × 22/15
=> (467/55) × 22/15
=> 934/75
(b) (3/7 × 28/15) ÷ (14/5)
=> (3/7 × 28/15 × 5/14)
=> (4/14)
(c) {3/7 + (-2/21)} × (-5/6)
=> (7/21) × (-5/6)
=> -35/ 126
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