Subtract 72/49 from 42/2, Solve 21 0/2

Subtract 72/49 from 42/2

1^st number: 21 0/2, 2^nd number: 1 23/49

42/2 - 72/49 is 957/49.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 49 is 98

Next, find the equivalent fraction of both fractional numbers with denominator 98
For the 1st fraction, since 2 × 49 = 98,
42/2 = 42 × 49/2 × 49 = 2058/98
Likewise, for the 2nd fraction, since 49 × 2 = 98,
72/49 = 72 × 2/49 × 2 = 144/98
Subtract the two like fractions:
2058/98 - 144/98 = 2058 - 144/98 = 1914/98
After reducing the fraction, the answer is 957/49
In mixed form: 1926/49

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