How much is 7 of 10 divided by 14

How much is 7 of 10 divided by 14


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A simple algorithm {(2 / 15 + 3 / 49) × 15-1} × 4.9


{(2 / 15 + 3 / 49) × 15-1} × 4.9
=﹙2/15×15+3/49×15-1﹚×49/10
=2/15×15×49/10+3/49×15×49/10-49/10
=98/10+45/10-49/10
=94/10
=9.4