Subtract 49/10 from 40/2
1st number: 20 0/2, 2nd number: 4 9/10
40/2 - 49/10 is 151/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
40/2 = 40 × 5/2 × 5 = 200/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
49/10 = 49 × 1/10 × 1 = 49/10 - Subtract the two like fractions:
200/10 - 49/10 = 200 - 49/10 = 151/10 - In mixed form: 151/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2-49/10 40/2-98/10 40/4-49/10 40/2-49/20 40/6-49/10 40/2-49/30 40/10-49/10 40/2-49/50 40/14-49/10 40/2-49/70