Subtract 42/96 from 3/90
3/90 - 42/96 is -97/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 96 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
3/90 = 3 × 16/90 × 16 = 48/1440 - Likewise, for the 2nd fraction, since 96 × 15 = 1440,
42/96 = 42 × 15/96 × 15 = 630/1440 - Subtract the two like fractions:
48/1440 - 630/1440 = 48 - 630/1440 = -582/1440 - After reducing the fraction, the answer is -97/240
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