Subtract 4/30 from 28/35
28/35 - 4/30 is 2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
28/35 = 28 × 6/35 × 6 = 168/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
4/30 = 4 × 7/30 × 7 = 28/210 - Subtract the two like fractions:
168/210 - 28/210 = 168 - 28/210 = 140/210 - After reducing the fraction, the answer is 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35-4/30 28/35-8/30 28/70-4/30 28/35-4/60 84/35-4/30 28/35-12/30 28/35-4/90 28/35-20/30 28/35-28/30