Subtract 7/70 from 45/8
1st number: 5 5/8, 2nd number: 7/70
45/8 - 7/70 is 221/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
45/8 = 45 × 35/8 × 35 = 1575/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
7/70 = 7 × 4/70 × 4 = 28/280 - Subtract the two like fractions:
1575/280 - 28/280 = 1575 - 28/280 = 1547/280 - After reducing the fraction, the answer is 221/40
- In mixed form: 521/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-7/70 45/8-14/70 45/16-7/70 45/8-21/70 45/24-7/70 45/8-35/70 45/40-7/70 45/8-49/70 45/56-7/70