Subtract 7/42 from 14/15
14/15 - 7/42 is 23/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
14/15 = 14 × 14/15 × 14 = 196/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
7/42 = 7 × 5/42 × 5 = 35/210 - Subtract the two like fractions:
196/210 - 35/210 = 196 - 35/210 = 161/210 - After reducing the fraction, the answer is 23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/15-7/42 14/15-14/42 14/30-7/42 14/15-7/84 42/15-7/42 14/15-21/42 14/45-7/42 70/15-7/42 14/15-35/42 14/75-7/42 98/15-7/42 14/15-49/42