Subtract 7/80 from 96/42, Solve 2 12/42

Subtract 7/80 from 96/42

1^st number: 2 12/42, 2^nd number: 7/80

96/42 - 7/80 is 1231/560.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 42 × 40 = 1680,
96/42 = 96 × 40/42 × 40 = 3840/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
7/80 = 7 × 21/80 × 21 = 147/1680
Subtract the two like fractions:
3840/1680 - 147/1680 = 3840 - 147/1680 = 3693/1680
After reducing the fraction, the answer is 1231/560
In mixed form: 2111/560

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