Subtract 4/63 from 12/70
12/70 - 4/63 is 34/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
4/63 = 4 × 10/63 × 10 = 40/630 - Subtract the two like fractions:
108/630 - 40/630 = 108 - 40/630 = 68/630 - After reducing the fraction, the answer is 34/315
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