Subtract 72/20 from 5/35
1st number: 5/35, 2nd number: 3 12/20
5/35 - 72/20 is -121/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
5/35 = 5 × 4/35 × 4 = 20/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Subtract the two like fractions:
20/140 - 504/140 = 20 - 504/140 = -484/140 - After reducing the fraction, the answer is -121/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/35-72/20 5/70-72/20 5/35-72/40 15/35-72/20 5/35-72/60 25/35-72/20