Add 70/54 and 45/12
1st number: 1 16/54, 2nd number: 3 9/12
70/54 + 45/12 is 545/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
70/54 = 70 × 2/54 × 2 = 140/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
45/12 = 45 × 9/12 × 9 = 405/108 - Add the two like fractions:
140/108 + 405/108 = 140 + 405/108 = 545/108 - So, 70/54 + 45/12 = 545/108
In mixed form: 55/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/54+90/12 70/54+45/24 70/54+45/36 70/54+45/60 70/54+45/84