Subtract 49/70 from 54/63
54/63 - 49/70 is 11/70.
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,
54/63 = 54 × 10/63 × 10 = 540/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
49/70 = 49 × 9/70 × 9 = 441/630 - Subtract the two like fractions:
540/630 - 441/630 = 540 - 441/630 = 99/630 - After reducing the fraction, the answer is 11/70
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