Subtract 10/8 from 45/18
1st number: 2 9/18, 2nd number: 1 2/8
45/18 - 10/8 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
45/18 = 45 × 4/18 × 4 = 180/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
10/8 = 10 × 9/8 × 9 = 90/72 - Subtract the two like fractions:
180/72 - 90/72 = 180 - 90/72 = 90/72 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18-10/8 45/18-20/8 45/36-10/8 45/18-10/16 45/18-30/8 45/54-10/8 45/18-10/24 45/18-50/8 45/90-10/8 45/18-10/40 45/18-70/8 45/18-10/56