Subtract 18/45 from 60/42, Solve 1 18/42

Subtract 18/45 from 60/42

1^st number: 1 18/42, 2^nd number: 18/45

60/42 - 18/45 is 36/35.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
60/42 = 60 × 15/42 × 15 = 900/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630
Subtract the two like fractions:
900/630 - 252/630 = 900 - 252/630 = 648/630
After reducing the fraction, the answer is 36/35
In mixed form: 11/35

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