Subtract 15/90 from 42/48
42/48 - 15/90 is 17/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
42/48 = 42 × 15/48 × 15 = 630/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
15/90 = 15 × 8/90 × 8 = 120/720 - Subtract the two like fractions:
630/720 - 120/720 = 630 - 120/720 = 510/720 - After reducing the fraction, the answer is 17/24
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