Subtract 80/70 from 9/25
1st number: 9/25, 2nd number: 1 10/70
9/25 - 80/70 is -137/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
9/25 = 9 × 14/25 × 14 = 126/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
80/70 = 80 × 5/70 × 5 = 400/350 - Subtract the two like fractions:
126/350 - 400/350 = 126 - 400/350 = -274/350 - After reducing the fraction, the answer is -137/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/25-80/70 9/50-80/70 27/25-80/70 9/75-80/70 45/25-80/70 63/25-80/70