Subtract 45/70 from 8/63
8/63 - 45/70 is -65/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
8/63 = 8 × 10/63 × 10 = 80/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Subtract the two like fractions:
80/630 - 405/630 = 80 - 405/630 = -325/630 - After reducing the fraction, the answer is -65/126
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