Subtract 80/70 from 42/16, Solve 2 10/16

Subtract 80/70 from 42/16

1^st number: 2 10/16, 2^nd number: 1 10/70

42/16 - 80/70 is 83/56.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 70 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 16 × 35 = 560,
42/16 = 42 × 35/16 × 35 = 1470/560
Likewise, for the 2nd fraction, since 70 × 8 = 560,
80/70 = 80 × 8/70 × 8 = 640/560
Subtract the two like fractions:
1470/560 - 640/560 = 1470 - 640/560 = 830/560
After reducing the fraction, the answer is 83/56
In mixed form: 127/56

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