Subtract 16/21 from 8/30, Solve 8/30

Subtract 16/21 from 8/30

8/30 - 16/21 is -52/105.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
8/30 = 8 × 7/30 × 7 = 56/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
16/21 = 16 × 10/21 × 10 = 160/210
Subtract the two like fractions:
56/210 - 160/210 = 56 - 160/210 = -104/210
After reducing the fraction, the answer is -52/105

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