Subtract 3/42 from 50/30, Solve 1 20/30

Subtract 3/42 from 50/30

1^st number: 1 20/30, 2^nd number: 3/42

50/30 - 3/42 is 67/42.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
50/30 = 50 × 7/30 × 7 = 350/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
3/42 = 3 × 5/42 × 5 = 15/210
Subtract the two like fractions:
350/210 - 15/210 = 350 - 15/210 = 335/210
After reducing the fraction, the answer is 67/42
In mixed form: 125/42

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