Subtract 3/9 from 60/42
1st number: 1 18/42, 2nd number: 3/9
60/42 - 3/9 is 23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
60/42 = 60 × 3/42 × 3 = 180/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
3/9 = 3 × 14/9 × 14 = 42/126 - Subtract the two like fractions:
180/126 - 42/126 = 180 - 42/126 = 138/126 - After reducing the fraction, the answer is 23/21
- In mixed form: 12/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42-6/9 60/84-3/9 60/42-3/18 60/42-3/27 60/42-15/9 60/42-3/45 60/42-21/9 60/42-3/63