Add 70/15 and 18/36
1st number: 4 10/15, 2nd number: 18/36
70/15 + 18/36 is 31/6.
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,
70/15 = 70 × 12/15 × 12 = 840/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
18/36 = 18 × 5/36 × 5 = 90/180 - Add the two like fractions:
840/180 + 90/180 = 840 + 90/180 = 930/180 - 930/180 simplified gives 31/6
- So, 70/15 + 18/36 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+18/36 70/15+18/72 70/15+54/36 70/45+18/36 70/15+90/36 70/75+18/36