Subtract 15/63 from 21/5
1st number: 4 1/5, 2nd number: 15/63
21/5 - 15/63 is 416/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
21/5 = 21 × 63/5 × 63 = 1323/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Subtract the two like fractions:
1323/315 - 75/315 = 1323 - 75/315 = 1248/315 - After reducing the fraction, the answer is 416/105
- In mixed form: 3101/105
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