Subtract 30/4 from 16/8
1st number: 2 0/8, 2nd number: 7 2/4
16/8 - 30/4 is -11/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 4 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 8 × 1 = 8,
16/8 = 16 × 1/8 × 1 = 16/8 - Likewise, for the 2nd fraction, since 4 × 2 = 8,
30/4 = 30 × 2/4 × 2 = 60/8 - Subtract the two like fractions:
16/8 - 60/8 = 16 - 60/8 = -44/8 - After reducing the fraction, the answer is -11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/8-30/4 16/8-60/4 16/8-30/8 48/8-30/4 16/8-90/4 16/24-30/4 16/8-30/12 80/8-30/4 16/40-30/4 16/8-30/20 16/56-30/4 16/8-30/28