Subtract 10/7 from 90/30, Solve 3 0/30

Subtract 10/7 from 90/30

1^st number: 3 0/30, 2^nd number: 1 3/7

90/30 - 10/7 is 11/7.

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,
90/30 = 90 × 7/30 × 7 = 630/210
Likewise, for the 2nd fraction, since 7 × 30 = 210,
10/7 = 10 × 30/7 × 30 = 300/210
Subtract the two like fractions:
630/210 - 300/210 = 630 - 300/210 = 330/210
After reducing the fraction, the answer is 11/7
In mixed form: 14/7

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