Subtract 16/9 from 16/42
1st number: 16/42, 2nd number: 1 7/9
16/42 - 16/9 is -88/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
16/42 = 16 × 3/42 × 3 = 48/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
16/9 = 16 × 14/9 × 14 = 224/126 - Subtract the two like fractions:
48/126 - 224/126 = 48 - 224/126 = -176/126 - After reducing the fraction, the answer is -88/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42-16/9 16/42-32/9 16/84-16/9 16/42-16/18 48/42-16/9 16/42-48/9 16/42-16/27 80/42-16/9 16/42-80/9 16/42-16/45 16/42-16/63