Subtract 1/63 from 70/21
1st number: 3 7/21, 2nd number: 1/63
70/21 - 1/63 is 209/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
70/21 = 70 × 3/21 × 3 = 210/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
1/63 = 1 × 1/63 × 1 = 1/63 - Subtract the two like fractions:
210/63 - 1/63 = 210 - 1/63 = 209/63 - In mixed form: 320/63
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