Subtract 28/45 from 75/10
1st number: 7 5/10, 2nd number: 28/45
75/10 - 28/45 is 619/90.
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,
75/10 = 75 × 9/10 × 9 = 675/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
28/45 = 28 × 2/45 × 2 = 56/90 - Subtract the two like fractions:
675/90 - 56/90 = 675 - 56/90 = 619/90 - In mixed form: 679/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/10-56/45 75/20-28/45 75/10-28/90 75/10-84/45 75/30-28/45 75/50-28/45 75/70-28/45