Add 15/18 and 70/4
1st number: 15/18, 2nd number: 17 2/4
15/18 + 70/4 is 55/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Add the two like fractions:
30/36 + 630/36 = 30 + 630/36 = 660/36 - 660/36 simplified gives 55/3
- So, 15/18 + 70/4 = 55/3
In mixed form: 181/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+70/4 15/36+70/4 15/18+70/8 45/18+70/4 15/54+70/4 15/18+70/12 75/18+70/4 15/90+70/4 15/18+70/20 15/18+70/28