Subtract 18/10 from 45/7
1st number: 6 3/7, 2nd number: 1 8/10
45/7 - 18/10 is 162/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
45/7 = 45 × 10/7 × 10 = 450/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
18/10 = 18 × 7/10 × 7 = 126/70 - Subtract the two like fractions:
450/70 - 126/70 = 450 - 126/70 = 324/70 - After reducing the fraction, the answer is 162/35
- In mixed form: 422/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7-18/10 45/7-36/10 45/14-18/10 45/7-18/20 45/7-54/10 45/21-18/10 45/7-18/30 45/7-90/10 45/35-18/10 45/7-18/50 45/49-18/10 45/7-18/70