Subtract 42/60 from 20/9
1st number: 2 2/9, 2nd number: 42/60
20/9 - 42/60 is 137/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
20/9 = 20 × 20/9 × 20 = 400/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Subtract the two like fractions:
400/180 - 126/180 = 400 - 126/180 = 274/180 - After reducing the fraction, the answer is 137/90
- In mixed form: 147/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9-42/60 20/9-84/60 20/18-42/60 60/9-42/60 20/27-42/60 20/45-42/60 20/63-42/60