Subtract 8/70 from 42/48, Solve 42/48

Subtract 8/70 from 42/48

42/48 - 8/70 is 213/280.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 48 × 35 = 1680,
42/48 = 42 × 35/48 × 35 = 1470/1680
Likewise, for the 2nd fraction, since 70 × 24 = 1680,
8/70 = 8 × 24/70 × 24 = 192/1680
Subtract the two like fractions:
1470/1680 - 192/1680 = 1470 - 192/1680 = 1278/1680
After reducing the fraction, the answer is 213/280

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