Subtract 21/5 from 25/63
1st number: 25/63, 2nd number: 4 1/5
25/63 - 21/5 is -1198/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
25/63 = 25 × 5/63 × 5 = 125/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
21/5 = 21 × 63/5 × 63 = 1323/315 - Subtract the two like fractions:
125/315 - 1323/315 = 125 - 1323/315 = -1198/315
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