Subtract 40/42 from 16/2
1st number: 8 0/2, 2nd number: 40/42
16/2 - 40/42 is 148/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
16/2 = 16 × 21/2 × 21 = 336/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
40/42 = 40 × 1/42 × 1 = 40/42 - Subtract the two like fractions:
336/42 - 40/42 = 336 - 40/42 = 296/42 - After reducing the fraction, the answer is 148/21
- In mixed form: 71/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/2-40/42 16/2-80/42 16/4-40/42 16/2-40/84 48/2-40/42 16/6-40/42 80/2-40/42 16/10-40/42 16/14-40/42