Subtract 98/21 from 70/12
1st number: 5 10/12, 2nd number: 4 14/21
70/12 - 98/21 is 7/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
70/12 = 70 × 7/12 × 7 = 490/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
98/21 = 98 × 4/21 × 4 = 392/84 - Subtract the two like fractions:
490/84 - 392/84 = 490 - 392/84 = 98/84 - After reducing the fraction, the answer is 7/6
- In mixed form: 11/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/24-98/21 70/12-98/42 70/36-98/21 70/12-98/63 70/60-98/21 70/84-98/21