Subtract 18/8 from 70/60
1st number: 1 10/60, 2nd number: 2 2/8
70/60 - 18/8 is -13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
70/60 = 70 × 2/60 × 2 = 140/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
18/8 = 18 × 15/8 × 15 = 270/120 - Subtract the two like fractions:
140/120 - 270/120 = 140 - 270/120 = -130/120 - After reducing the fraction, the answer is -13/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60-36/8 70/60-18/16 70/60-54/8 70/60-18/24 70/60-90/8 70/60-18/40 70/60-18/56