Subtract 49/96 from 42/90
42/90 - 49/96 is -7/160.
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,
42/90 = 42 × 16/90 × 16 = 672/1440 - Likewise, for the 2nd fraction, since 96 × 15 = 1440,
49/96 = 49 × 15/96 × 15 = 735/1440 - Subtract the two like fractions:
672/1440 - 735/1440 = 672 - 735/1440 = -63/1440 - After reducing the fraction, the answer is -7/160
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