Subtract 49/48 from 42/90
1st number: 42/90, 2nd number: 1 1/48
42/90 - 49/48 is -133/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
42/90 = 42 × 8/90 × 8 = 336/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
49/48 = 49 × 15/48 × 15 = 735/720 - Subtract the two like fractions:
336/720 - 735/720 = 336 - 735/720 = -399/720 - After reducing the fraction, the answer is -133/240
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