Subtract 6/7 from 70/30, Solve 2 10/30

Subtract 6/7 from 70/30

1^st number: 2 10/30, 2^nd number: 6/7

70/30 - 6/7 is 31/21.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210
Likewise, for the 2nd fraction, since 7 × 30 = 210,
6/7 = 6 × 30/7 × 30 = 180/210
Subtract the two like fractions:
490/210 - 180/210 = 490 - 180/210 = 310/210
After reducing the fraction, the answer is 31/21
In mixed form: 110/21

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