Subtract 4/50 from 42/15, Solve 2 12/15

Subtract 4/50 from 42/15

1^st number: 2 12/15, 2^nd number: 4/50

42/15 - 4/50 is 68/25.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 50 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 15 × 10 = 150,
42/15 = 42 × 10/15 × 10 = 420/150
Likewise, for the 2nd fraction, since 50 × 3 = 150,
4/50 = 4 × 3/50 × 3 = 12/150
Subtract the two like fractions:
420/150 - 12/150 = 420 - 12/150 = 408/150
After reducing the fraction, the answer is 68/25
In mixed form: 218/25

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