Subtract 3/18 from 49/42
1st number: 1 7/42, 2nd number: 3/18
49/42 - 3/18 is 1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
49/42 = 49 × 3/42 × 3 = 147/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
3/18 = 3 × 7/18 × 7 = 21/126 - Subtract the two like fractions:
147/126 - 21/126 = 147 - 21/126 = 126/126 - After reducing the fraction, the answer is 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42-3/18 49/42-6/18 49/84-3/18 49/42-3/36 49/42-9/18 49/42-3/54 49/42-15/18 49/42-3/90 49/42-21/18