Subtract 36/20 from 3/35
1st number: 3/35, 2nd number: 1 16/20
3/35 - 36/20 is -12/7.
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,
3/35 = 3 × 4/35 × 4 = 12/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
36/20 = 36 × 7/20 × 7 = 252/140 - Subtract the two like fractions:
12/140 - 252/140 = 12 - 252/140 = -240/140 - After reducing the fraction, the answer is -12/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/35-36/20 3/35-72/20 3/70-36/20 3/35-36/40 9/35-36/20 3/35-36/60 15/35-36/20 21/35-36/20