Subtract 18/63 from 21/8
1st number: 2 5/8, 2nd number: 18/63
21/8 - 18/63 is 131/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
21/8 = 21 × 63/8 × 63 = 1323/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
18/63 = 18 × 8/63 × 8 = 144/504 - Subtract the two like fractions:
1323/504 - 144/504 = 1323 - 144/504 = 1179/504 - After reducing the fraction, the answer is 131/56
- In mixed form: 219/56
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