Subtract 9/28 from 30/35
30/35 - 9/28 is 15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
30/35 = 30 × 4/35 × 4 = 120/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
9/28 = 9 × 5/28 × 5 = 45/140 - Subtract the two like fractions:
120/140 - 45/140 = 120 - 45/140 = 75/140 - After reducing the fraction, the answer is 15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35-9/28 30/35-18/28 30/70-9/28 30/35-9/56 90/35-9/28 30/35-27/28 30/35-9/84 30/35-45/28 30/35-63/28