Subtract 30/20 from 3/35
1st number: 3/35, 2nd number: 1 10/20
3/35 - 30/20 is -99/70.
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,
30/20 = 30 × 7/20 × 7 = 210/140 - Subtract the two like fractions:
12/140 - 210/140 = 12 - 210/140 = -198/140 - After reducing the fraction, the answer is -99/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/35-30/20 3/35-60/20 3/70-30/20 3/35-30/40 9/35-30/20 3/35-90/20 3/35-30/60 15/35-30/20 21/35-30/20