Subtract 40/42 from 16/15
1st number: 1 1/15, 2nd number: 40/42
16/15 - 40/42 is 4/35.
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,
16/15 = 16 × 14/15 × 14 = 224/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
40/42 = 40 × 5/42 × 5 = 200/210 - Subtract the two like fractions:
224/210 - 200/210 = 224 - 200/210 = 24/210 - After reducing the fraction, the answer is 4/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/15-40/42 16/15-80/42 16/30-40/42 16/15-40/84 48/15-40/42 16/45-40/42 80/15-40/42 16/75-40/42