Add 70/18 and 15/84
1st number: 3 16/18, 2nd number: 15/84
70/18 + 15/84 is 1025/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
70/18 = 70 × 14/18 × 14 = 980/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
15/84 = 15 × 3/84 × 3 = 45/252 - Add the two like fractions:
980/252 + 45/252 = 980 + 45/252 = 1025/252 - So, 70/18 + 15/84 = 1025/252
In mixed form: 417/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+30/84 70/36+15/84 70/18+45/84 70/54+15/84 70/18+75/84 70/90+15/84