Subtract 40/70 from 49/28
1st number: 1 21/28, 2nd number: 40/70
49/28 - 40/70 is 33/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
49/28 = 49 × 5/28 × 5 = 245/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
40/70 = 40 × 2/70 × 2 = 80/140 - Subtract the two like fractions:
245/140 - 80/140 = 245 - 80/140 = 165/140 - After reducing the fraction, the answer is 33/28
- In mixed form: 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28-40/70 49/28-80/70 49/56-40/70 49/84-40/70