Subtract 84/5 from 15/70
1st number: 15/70, 2nd number: 16 4/5
15/70 - 84/5 is -1161/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
84/5 = 84 × 14/5 × 14 = 1176/70 - Subtract the two like fractions:
15/70 - 1176/70 = 15 - 1176/70 = -1161/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-84/5 15/70-84/10 45/70-84/5 15/70-84/15 75/70-84/5 15/70-84/25 15/70-84/35