Subtract 80/70 from 3/9
1st number: 3/9, 2nd number: 1 10/70
3/9 - 80/70 is -17/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
3/9 = 3 × 70/9 × 70 = 210/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630 - Subtract the two like fractions:
210/630 - 720/630 = 210 - 720/630 = -510/630 - After reducing the fraction, the answer is -17/21
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