Subtract 15/18 from 56/35, Solve 1 21/35

Subtract 15/18 from 56/35

1^st number: 1 21/35, 2^nd number: 15/18

56/35 - 15/18 is 23/30.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 35 × 18 = 630,
56/35 = 56 × 18/35 × 18 = 1008/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
15/18 = 15 × 35/18 × 35 = 525/630
Subtract the two like fractions:
1008/630 - 525/630 = 1008 - 525/630 = 483/630
After reducing the fraction, the answer is 23/30

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