Subtract 15/8 from 5/70
1st number: 5/70, 2nd number: 1 7/8
5/70 - 15/8 is -101/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
5/70 = 5 × 4/70 × 4 = 20/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
15/8 = 15 × 35/8 × 35 = 525/280 - Subtract the two like fractions:
20/280 - 525/280 = 20 - 525/280 = -505/280 - After reducing the fraction, the answer is -101/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70-15/8 5/70-30/8 5/70-15/16 15/70-15/8 5/70-45/8 5/70-15/24 25/70-15/8 5/70-75/8 5/70-15/40 35/70-15/8 5/70-15/56