Subtract 10/42 from 4/5
4/5 - 10/42 is 59/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
4/5 = 4 × 42/5 × 42 = 168/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210 - Subtract the two like fractions:
168/210 - 50/210 = 168 - 50/210 = 118/210 - After reducing the fraction, the answer is 59/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-10/42 4/5-20/42 4/10-10/42 4/5-10/84 12/5-10/42 4/5-30/42 4/15-10/42 20/5-10/42 4/5-50/42 4/25-10/42 28/5-10/42 4/5-70/42 4/35-10/42