Subtract 9/72 from 20/4
1st number: 5 0/4, 2nd number: 9/72
20/4 - 9/72 is 39/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
20/4 = 20 × 18/4 × 18 = 360/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
9/72 = 9 × 1/72 × 1 = 9/72 - Subtract the two like fractions:
360/72 - 9/72 = 360 - 9/72 = 351/72 - After reducing the fraction, the answer is 39/8
- In mixed form: 47/8
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