Subtract 30/70 from 32/12, Solve 2 8/12

Subtract 30/70 from 32/12

1^st number: 2 8/12, 2^nd number: 30/70

32/12 - 30/70 is 47/21.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
32/12 = 32 × 35/12 × 35 = 1120/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
30/70 = 30 × 6/70 × 6 = 180/420
Subtract the two like fractions:
1120/420 - 180/420 = 1120 - 180/420 = 940/420
After reducing the fraction, the answer is 47/21
In mixed form: 25/21

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