Subtract 90/4 from 63/3
1st number: 21 0/3, 2nd number: 22 2/4
63/3 - 90/4 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 4 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 3 × 4 = 12,
63/3 = 63 × 4/3 × 4 = 252/12 - Likewise, for the 2nd fraction, since 4 × 3 = 12,
90/4 = 90 × 3/4 × 3 = 270/12 - Subtract the two like fractions:
252/12 - 270/12 = 252 - 270/12 = -18/12 - After reducing the fraction, the answer is -3/2
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