Subtract 90/21 from 15/50
1st number: 15/50, 2nd number: 4 6/21
15/50 - 90/21 is -279/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
15/50 = 15 × 21/50 × 21 = 315/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
90/21 = 90 × 50/21 × 50 = 4500/1050 - Subtract the two like fractions:
315/1050 - 4500/1050 = 315 - 4500/1050 = -4185/1050 - After reducing the fraction, the answer is -279/70
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