Subtract 28/35 from 45/30
1st number: 1 15/30, 2nd number: 28/35
45/30 - 28/35 is 7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
45/30 = 45 × 7/30 × 7 = 315/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
28/35 = 28 × 6/35 × 6 = 168/210 - Subtract the two like fractions:
315/210 - 168/210 = 315 - 168/210 = 147/210 - After reducing the fraction, the answer is 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-28/35 45/30-56/35 45/60-28/35 45/30-28/70 45/30-84/35 45/90-28/35