Subtract 5/42 from 90/35, Solve 2 20/35

Subtract 5/42 from 90/35

1^st number: 2 20/35, 2^nd number: 5/42

90/35 - 5/42 is 103/42.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 35 × 6 = 210,
90/35 = 90 × 6/35 × 6 = 540/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
5/42 = 5 × 5/42 × 5 = 25/210
Subtract the two like fractions:
540/210 - 25/210 = 540 - 25/210 = 515/210
After reducing the fraction, the answer is 103/42
In mixed form: 219/42

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