Subtract 84/16 from 30/80
1st number: 30/80, 2nd number: 5 4/16
30/80 - 84/16 is -39/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
30/80 = 30 × 1/80 × 1 = 30/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
84/16 = 84 × 5/16 × 5 = 420/80 - Subtract the two like fractions:
30/80 - 420/80 = 30 - 420/80 = -390/80 - After reducing the fraction, the answer is -39/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80-84/16 30/80-84/32 90/80-84/16 30/80-84/48 30/80-84/80