Subtract 14/70 from 28/30
28/30 - 14/70 is 11/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
14/70 = 14 × 3/70 × 3 = 42/210 - Subtract the two like fractions:
196/210 - 42/210 = 196 - 42/210 = 154/210 - After reducing the fraction, the answer is 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30-14/70 28/30-28/70 28/60-14/70 84/30-14/70 28/30-42/70 28/90-14/70 28/30-98/70