Subtract 70/63 from 21/5
1st number: 4 1/5, 2nd number: 1 7/63
21/5 - 70/63 is 139/45.
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,
70/63 = 70 × 5/63 × 5 = 350/315 - Subtract the two like fractions:
1323/315 - 350/315 = 1323 - 350/315 = 973/315 - After reducing the fraction, the answer is 139/45
- In mixed form: 34/45
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