Subtract 2/5 from 42/36, Solve 1 6/36

Subtract 2/5 from 42/36

1^st number: 1 6/36, 2^nd number: 2/5

42/36 - 2/5 is 23/30.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 5 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180
Likewise, for the 2nd fraction, since 5 × 36 = 180,
2/5 = 2 × 36/5 × 36 = 72/180
Subtract the two like fractions:
210/180 - 72/180 = 210 - 72/180 = 138/180
After reducing the fraction, the answer is 23/30

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