Subtract 63/90 from 84/10
1st number: 8 4/10, 2nd number: 63/90
84/10 - 63/90 is 77/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
84/10 = 84 × 9/10 × 9 = 756/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
63/90 = 63 × 1/90 × 1 = 63/90 - Subtract the two like fractions:
756/90 - 63/90 = 756 - 63/90 = 693/90 - After reducing the fraction, the answer is 77/10
- In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20-63/90 84/30-63/90 84/50-63/90 84/70-63/90