Subtract 8/42 from 48/27, Solve 1 21/27

Subtract 8/42 from 48/27

1^st number: 1 21/27, 2^nd number: 8/42

48/27 - 8/42 is 100/63.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
48/27 = 48 × 14/27 × 14 = 672/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
8/42 = 8 × 9/42 × 9 = 72/378
Subtract the two like fractions:
672/378 - 72/378 = 672 - 72/378 = 600/378
After reducing the fraction, the answer is 100/63
In mixed form: 137/63

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