Subtract 84/25 from 15/70
1st number: 15/70, 2nd number: 3 9/25
15/70 - 84/25 is -1101/350.
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,
84/25 = 84 × 14/25 × 14 = 1176/350 - Subtract the two like fractions:
75/350 - 1176/350 = 75 - 1176/350 = -1101/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-84/25 15/70-84/50 45/70-84/25 15/70-84/75 75/70-84/25