Subtract 1/20 from 75/7
1st number: 10 5/7, 2nd number: 1/20
75/7 - 1/20 is 1493/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
75/7 = 75 × 20/7 × 20 = 1500/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
1/20 = 1 × 7/20 × 7 = 7/140 - Subtract the two like fractions:
1500/140 - 7/140 = 1500 - 7/140 = 1493/140 - In mixed form: 1093/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/7-2/20 75/14-1/20 75/7-1/40 75/7-3/20 75/21-1/20 75/7-1/60 75/7-5/20 75/35-1/20 75/7-7/20 75/49-1/20