Subtract 42/9 from 70/16
1st number: 4 6/16, 2nd number: 4 6/9
70/16 - 42/9 is -7/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
70/16 = 70 × 9/16 × 9 = 630/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
42/9 = 42 × 16/9 × 16 = 672/144 - Subtract the two like fractions:
630/144 - 672/144 = 630 - 672/144 = -42/144 - After reducing the fraction, the answer is -7/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/16-84/9 70/32-42/9 70/16-42/18 70/48-42/9 70/16-42/27 70/80-42/9 70/16-42/45 70/16-42/63