Subtract 42/6 from 16/72
1st number: 16/72, 2nd number: 7 0/6
16/72 - 42/6 is -61/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 6 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
16/72 = 16 × 1/72 × 1 = 16/72 - Likewise, for the 2nd fraction, since 6 × 12 = 72,
42/6 = 42 × 12/6 × 12 = 504/72 - Subtract the two like fractions:
16/72 - 504/72 = 16 - 504/72 = -488/72 - After reducing the fraction, the answer is -61/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/72-42/6 16/72-84/6 16/72-42/12 48/72-42/6 16/72-42/18 80/72-42/6 16/72-42/30