Subtract 84/45 from 16/30
1st number: 16/30, 2nd number: 1 39/45
16/30 - 84/45 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
16/30 = 16 × 3/30 × 3 = 48/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Subtract the two like fractions:
48/90 - 168/90 = 48 - 168/90 = -120/90 - After reducing the fraction, the answer is -4/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/30-84/45 16/60-84/45 16/30-84/90 48/30-84/45 16/90-84/45 80/30-84/45