Subtract 90/20 from 63/4
1st number: 15 3/4, 2nd number: 4 10/20
63/4 - 90/20 is 45/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
63/4 = 63 × 5/4 × 5 = 315/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
90/20 = 90 × 1/20 × 1 = 90/20 - Subtract the two like fractions:
315/20 - 90/20 = 315 - 90/20 = 225/20 - After reducing the fraction, the answer is 45/4
- In mixed form: 111/4
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