Add 54/15 and 70/36
1st number: 3 9/15, 2nd number: 1 34/36
54/15 + 70/36 is 499/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
54/15 = 54 × 12/15 × 12 = 648/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
70/36 = 70 × 5/36 × 5 = 350/180 - Add the two like fractions:
648/180 + 350/180 = 648 + 350/180 = 998/180 - 998/180 simplified gives 499/90
- So, 54/15 + 70/36 = 499/90
In mixed form: 549/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+70/36 54/15+70/72 54/45+70/36 54/75+70/36