Subtract 9/20 from 50/45
1st number: 1 5/45, 2nd number: 9/20
50/45 - 9/20 is 119/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
50/45 = 50 × 4/45 × 4 = 200/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Subtract the two like fractions:
200/180 - 81/180 = 200 - 81/180 = 119/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45-18/20 50/90-9/20 50/45-9/40 50/45-27/20 50/45-9/60 50/45-45/20 50/45-63/20