Subtract 84/9 from 12/5
1st number: 2 2/5, 2nd number: 9 3/9
12/5 - 84/9 is -104/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
12/5 = 12 × 9/5 × 9 = 108/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
84/9 = 84 × 5/9 × 5 = 420/45 - Subtract the two like fractions:
108/45 - 420/45 = 108 - 420/45 = -312/45 - After reducing the fraction, the answer is -104/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-84/9 12/10-84/9 12/5-84/18 36/5-84/9 12/15-84/9 12/5-84/27 60/5-84/9 12/25-84/9 12/5-84/45 84/5-84/9 12/35-84/9 12/5-84/63