Subtract 20/7 from 60/18
1st number: 3 6/18, 2nd number: 2 6/7
60/18 - 20/7 is 10/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
60/18 = 60 × 7/18 × 7 = 420/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
20/7 = 20 × 18/7 × 18 = 360/126 - Subtract the two like fractions:
420/126 - 360/126 = 420 - 360/126 = 60/126 - After reducing the fraction, the answer is 10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18-40/7 60/36-20/7 60/18-20/14 60/18-60/7 60/54-20/7 60/18-20/21 60/90-20/7 60/18-20/35 60/18-20/49