Subtract 9/25 from 15/70
15/70 - 9/25 is -51/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
15/70 = 15 × 5/70 × 5 = 75/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
9/25 = 9 × 14/25 × 14 = 126/350 - Subtract the two like fractions:
75/350 - 126/350 = 75 - 126/350 = -51/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-9/25 15/70-18/25 15/70-9/50 45/70-9/25 15/70-27/25 15/70-9/75 75/70-9/25 15/70-45/25 15/70-63/25