Subtract 15/70 from 20/6, Solve 3 2/6

Subtract 15/70 from 20/6

1^st number: 3 2/6, 2^nd number: 15/70

20/6 - 15/70 is 131/42.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 6 × 35 = 210,
20/6 = 20 × 35/6 × 35 = 700/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
15/70 = 15 × 3/70 × 3 = 45/210
Subtract the two like fractions:
700/210 - 45/210 = 700 - 45/210 = 655/210
After reducing the fraction, the answer is 131/42
In mixed form: 35/42

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