Subtract 70/7 from 45/63
1st number: 45/63, 2nd number: 10 0/7
45/63 - 70/7 is -65/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
45/63 = 45 × 1/63 × 1 = 45/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
70/7 = 70 × 9/7 × 9 = 630/63 - Subtract the two like fractions:
45/63 - 630/63 = 45 - 630/63 = -585/63 - After reducing the fraction, the answer is -65/7
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