Subtract 90/3 from 21/4
1st number: 5 1/4, 2nd number: 30 0/3
21/4 - 90/3 is -99/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 3 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
21/4 = 21 × 3/4 × 3 = 63/12 - Likewise, for the 2nd fraction, since 3 × 4 = 12,
90/3 = 90 × 4/3 × 4 = 360/12 - Subtract the two like fractions:
63/12 - 360/12 = 63 - 360/12 = -297/12 - After reducing the fraction, the answer is -99/4
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