Subtract 15/9 from 12/70
1st number: 12/70, 2nd number: 1 6/9
12/70 - 15/9 is -157/105.
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,
12/70 = 12 × 9/70 × 9 = 108/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
15/9 = 15 × 70/9 × 70 = 1050/630 - Subtract the two like fractions:
108/630 - 1050/630 = 108 - 1050/630 = -942/630 - After reducing the fraction, the answer is -157/105
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