Subtract 12/9 from 15/70
1st number: 15/70, 2nd number: 1 3/9
15/70 - 12/9 is -47/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
15/70 = 15 × 9/70 × 9 = 135/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
12/9 = 12 × 70/9 × 70 = 840/630 - Subtract the two like fractions:
135/630 - 840/630 = 135 - 840/630 = -705/630 - After reducing the fraction, the answer is -47/42
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