Subtract 84/25 from 70/20
1st number: 3 10/20, 2nd number: 3 9/25
70/20 - 84/25 is 7/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
70/20 = 70 × 5/20 × 5 = 350/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
84/25 = 84 × 4/25 × 4 = 336/100 - Subtract the two like fractions:
350/100 - 336/100 = 350 - 336/100 = 14/100 - After reducing the fraction, the answer is 7/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-84/25 70/20-84/50 70/60-84/25 70/20-84/75