Subtract 90/63 from 21/50
1st number: 21/50, 2nd number: 1 27/63
21/50 - 90/63 is -353/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 63 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 50 × 63 = 3150,
21/50 = 21 × 63/50 × 63 = 1323/3150 - Likewise, for the 2nd fraction, since 63 × 50 = 3150,
90/63 = 90 × 50/63 × 50 = 4500/3150 - Subtract the two like fractions:
1323/3150 - 4500/3150 = 1323 - 4500/3150 = -3177/3150 - After reducing the fraction, the answer is -353/350
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