Subtract 1/3 from 42/30, Solve 1 12/30

Subtract 1/3 from 42/30

1^st number: 1 12/30, 2^nd number: 1/3

42/30 - 1/3 is 16/15.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30
Likewise, for the 2nd fraction, since 3 × 10 = 30,
1/3 = 1 × 10/3 × 10 = 10/30
Subtract the two like fractions:
42/30 - 10/30 = 42 - 10/30 = 32/30
After reducing the fraction, the answer is 16/15
In mixed form: 11/15

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