Subtract 7/20 from 45/6
1st number: 7 3/6, 2nd number: 7/20
45/6 - 7/20 is 143/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
45/6 = 45 × 10/6 × 10 = 450/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Subtract the two like fractions:
450/60 - 21/60 = 450 - 21/60 = 429/60 - After reducing the fraction, the answer is 143/20
- In mixed form: 73/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6-7/20 45/6-14/20 45/12-7/20 45/6-7/40 45/6-21/20 45/18-7/20 45/6-7/60 45/6-35/20 45/30-7/20 45/6-49/20 45/42-7/20