Subtract 35/45 from 28/20
1st number: 1 8/20, 2nd number: 35/45
28/20 - 35/45 is 28/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
28/20 = 28 × 9/20 × 9 = 252/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
35/45 = 35 × 4/45 × 4 = 140/180 - Subtract the two like fractions:
252/180 - 140/180 = 252 - 140/180 = 112/180 - After reducing the fraction, the answer is 28/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20-35/45 28/20-70/45 28/40-35/45 28/20-35/90 84/20-35/45 28/60-35/45