Subtract 90/42 from 36/10, Solve 3 6/10

Subtract 90/42 from 36/10

1^st number: 3 6/10, 2^nd number: 2 6/42

36/10 - 90/42 is 51/35.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
36/10 = 36 × 21/10 × 21 = 756/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210
Subtract the two like fractions:
756/210 - 450/210 = 756 - 450/210 = 306/210
After reducing the fraction, the answer is 51/35
In mixed form: 116/35

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