Subtract 5/10 from 70/21, Solve 3 7/21

Subtract 5/10 from 70/21

1^st number: 3 7/21, 2^nd number: 5/10

70/21 - 5/10 is 17/6.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
5/10 = 5 × 21/10 × 21 = 105/210
Subtract the two like fractions:
700/210 - 105/210 = 700 - 105/210 = 595/210
After reducing the fraction, the answer is 17/6
In mixed form: 25/6

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