Subtract 9/70 from 6/63
6/63 - 9/70 is -1/30.
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,
6/63 = 6 × 10/63 × 10 = 60/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
9/70 = 9 × 9/70 × 9 = 81/630 - Subtract the two like fractions:
60/630 - 81/630 = 60 - 81/630 = -21/630 - After reducing the fraction, the answer is -1/30
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