Subtract 25/90 from 20/48
20/48 - 25/90 is 5/36.
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,
20/48 = 20 × 15/48 × 15 = 300/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
25/90 = 25 × 8/90 × 8 = 200/720 - Subtract the two like fractions:
300/720 - 200/720 = 300 - 200/720 = 100/720 - After reducing the fraction, the answer is 5/36
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