Subtract 49/42 from 2/84
1st number: 2/84, 2nd number: 1 7/42
2/84 - 49/42 is -8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
2/84 = 2 × 1/84 × 1 = 2/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
49/42 = 49 × 2/42 × 2 = 98/84 - Subtract the two like fractions:
2/84 - 98/84 = 2 - 98/84 = -96/84 - After reducing the fraction, the answer is -8/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84-49/42 2/84-98/42 2/84-49/84 6/84-49/42 10/84-49/42 14/84-49/42