Subtract 6/21 from 1/10, Solve 1/10

Subtract 6/21 from 1/10

1/10 - 6/21 is -13/70.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
1/10 = 1 × 21/10 × 21 = 21/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
6/21 = 6 × 10/21 × 10 = 60/210
Subtract the two like fractions:
21/210 - 60/210 = 21 - 60/210 = -39/210
After reducing the fraction, the answer is -13/70

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