Subtract 42/64 from 3/30
3/30 - 42/64 is -89/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 30 × 32 = 960,
3/30 = 3 × 32/30 × 32 = 96/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
42/64 = 42 × 15/64 × 15 = 630/960 - Subtract the two like fractions:
96/960 - 630/960 = 96 - 630/960 = -534/960 - After reducing the fraction, the answer is -89/160
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