Subtract 2/90 from 49/42, Solve 1 7/42

Subtract 2/90 from 49/42

1^st number: 1 7/42, 2^nd number: 2/90

49/42 - 2/90 is 103/90.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
49/42 = 49 × 15/42 × 15 = 735/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
2/90 = 2 × 7/90 × 7 = 14/630
Subtract the two like fractions:
735/630 - 14/630 = 735 - 14/630 = 721/630
After reducing the fraction, the answer is 103/90
In mixed form: 113/90

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