Subtract 8/15 from 36/42
36/42 - 8/15 is 34/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
36/42 = 36 × 5/42 × 5 = 180/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
8/15 = 8 × 14/15 × 14 = 112/210 - Subtract the two like fractions:
180/210 - 112/210 = 180 - 112/210 = 68/210 - After reducing the fraction, the answer is 34/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42-8/15 36/42-16/15 36/84-8/15 36/42-8/30 36/42-24/15 36/42-8/45 36/42-40/15 36/42-8/75 36/42-56/15