Add 70/15 and 30/54
1st number: 4 10/15, 2nd number: 30/54
70/15 + 30/54 is 47/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
70/15 = 70 × 18/15 × 18 = 1260/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
30/54 = 30 × 5/54 × 5 = 150/270 - Add the two like fractions:
1260/270 + 150/270 = 1260 + 150/270 = 1410/270 - 1410/270 simplified gives 47/9
- So, 70/15 + 30/54 = 47/9
In mixed form: 52/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+60/54 70/30+30/54 70/15+90/54 70/45+30/54 70/75+30/54