Subtract 28/45 from 9/10
9/10 - 28/45 is 5/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
9/10 = 9 × 9/10 × 9 = 81/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
28/45 = 28 × 2/45 × 2 = 56/90 - Subtract the two like fractions:
81/90 - 56/90 = 81 - 56/90 = 25/90 - After reducing the fraction, the answer is 5/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10-28/45 9/10-56/45 9/20-28/45 9/10-28/90 27/10-28/45 9/10-84/45 9/30-28/45 45/10-28/45 9/50-28/45 63/10-28/45 9/70-28/45