Subtract 30/42 from 42/64
42/64 - 30/42 is -13/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 42 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 64 × 21 = 1344,
42/64 = 42 × 21/64 × 21 = 882/1344 - Likewise, for the 2nd fraction, since 42 × 32 = 1344,
30/42 = 30 × 32/42 × 32 = 960/1344 - Subtract the two like fractions:
882/1344 - 960/1344 = 882 - 960/1344 = -78/1344 - After reducing the fraction, the answer is -13/224
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