Subtract 50/15 from 42/16
1st number: 2 10/16, 2nd number: 3 5/15
42/16 - 50/15 is -17/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
42/16 = 42 × 15/16 × 15 = 630/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
50/15 = 50 × 16/15 × 16 = 800/240 - Subtract the two like fractions:
630/240 - 800/240 = 630 - 800/240 = -170/240 - After reducing the fraction, the answer is -17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16-50/15 42/32-50/15 42/16-50/30 42/48-50/15 42/16-50/45 42/80-50/15 42/16-50/75