Subtract 96/90 from 84/72
1st number: 1 12/72, 2nd number: 1 6/90
84/72 - 96/90 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
96/90 = 96 × 4/90 × 4 = 384/360 - Subtract the two like fractions:
420/360 - 384/360 = 420 - 384/360 = 36/360 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: