Subtract 70/9 from 30/63
1st number: 30/63, 2nd number: 7 7/9
30/63 - 70/9 is -460/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
30/63 = 30 × 1/63 × 1 = 30/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
70/9 = 70 × 7/9 × 7 = 490/63 - Subtract the two like fractions:
30/63 - 490/63 = 30 - 490/63 = -460/63
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