Subtract 4/28 from 30/35
30/35 - 4/28 is 5/7.
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,
4/28 = 4 × 5/28 × 5 = 20/140 - Subtract the two like fractions:
120/140 - 20/140 = 120 - 20/140 = 100/140 - After reducing the fraction, the answer is 5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35-4/28 30/35-8/28 30/70-4/28 30/35-4/56 90/35-4/28 30/35-12/28 30/35-4/84 30/35-20/28