Subtract 28/10 from 84/32
1st number: 2 20/32, 2nd number: 2 8/10
84/32 - 28/10 is -7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 10 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
84/32 = 84 × 5/32 × 5 = 420/160 - Likewise, for the 2nd fraction, since 10 × 16 = 160,
28/10 = 28 × 16/10 × 16 = 448/160 - Subtract the two like fractions:
420/160 - 448/160 = 420 - 448/160 = -28/160 - After reducing the fraction, the answer is -7/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/32-56/10 84/64-28/10 84/32-28/20 84/32-84/10 84/96-28/10 84/32-28/30 84/32-28/50 84/32-28/70