Subtract 9/8 from 64/42
1st number: 1 22/42, 2nd number: 1 1/8
64/42 - 9/8 is 67/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
64/42 = 64 × 4/42 × 4 = 256/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
9/8 = 9 × 21/8 × 21 = 189/168 - Subtract the two like fractions:
256/168 - 189/168 = 256 - 189/168 = 67/168
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