Subtract 15/35 from 45/20
1st number: 2 5/20, 2nd number: 15/35
45/20 - 15/35 is 51/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
45/20 = 45 × 7/20 × 7 = 315/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
15/35 = 15 × 4/35 × 4 = 60/140 - Subtract the two like fractions:
315/140 - 60/140 = 315 - 60/140 = 255/140 - After reducing the fraction, the answer is 51/28
- In mixed form: 123/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-15/35 45/20-30/35 45/40-15/35 45/20-15/70 45/20-45/35 45/60-15/35 45/20-75/35