Subtract 10/42 from 36/18
1st number: 2 0/18, 2nd number: 10/42
36/18 - 10/42 is 37/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
36/18 = 36 × 7/18 × 7 = 252/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
10/42 = 10 × 3/42 × 3 = 30/126 - Subtract the two like fractions:
252/126 - 30/126 = 252 - 30/126 = 222/126 - After reducing the fraction, the answer is 37/21
- In mixed form: 116/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18-10/42 36/18-20/42 36/18-10/84 36/18-30/42 36/54-10/42 36/18-50/42 36/90-10/42 36/18-70/42