Subtract 50/42 from 2/30, Solve 2/30

Subtract 50/42 from 2/30

1^st number: 2/30, 2^nd number: 1 8/42

2/30 - 50/42 is -118/105.

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,
2/30 = 2 × 7/30 × 7 = 14/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
50/42 = 50 × 5/42 × 5 = 250/210
Subtract the two like fractions:
14/210 - 250/210 = 14 - 250/210 = -236/210
After reducing the fraction, the answer is -118/105

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