Subtract 2/21 from 14/30, Solve 14/30

Subtract 2/21 from 14/30

14/30 - 2/21 is 13/35.

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,
14/30 = 14 × 7/30 × 7 = 98/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
2/21 = 2 × 10/21 × 10 = 20/210
Subtract the two like fractions:
98/210 - 20/210 = 98 - 20/210 = 78/210
After reducing the fraction, the answer is 13/35

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