Add 70/54 and 21/9
1st number: 1 16/54, 2nd number: 2 3/9
70/54 + 21/9 is 98/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
70/54 = 70 × 1/54 × 1 = 70/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
21/9 = 21 × 6/9 × 6 = 126/54 - Add the two like fractions:
70/54 + 126/54 = 70 + 126/54 = 196/54 - 196/54 simplified gives 98/27
- So, 70/54 + 21/9 = 98/27
In mixed form: 317/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/54+42/9 70/54+21/18 70/54+63/9 70/54+21/27 70/54+21/45 70/54+21/63