Subtract 42/48 from 1/90
1/90 - 42/48 is -311/360.
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,
1/90 = 1 × 8/90 × 8 = 8/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
42/48 = 42 × 15/48 × 15 = 630/720 - Subtract the two like fractions:
8/720 - 630/720 = 8 - 630/720 = -622/720 - After reducing the fraction, the answer is -311/360
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