Add 18/28 and 70/18
1st number: 18/28, 2nd number: 3 16/18
18/28 + 70/18 is 571/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
18/28 = 18 × 9/28 × 9 = 162/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
70/18 = 70 × 14/18 × 14 = 980/252 - Add the two like fractions:
162/252 + 980/252 = 162 + 980/252 = 1142/252 - 1142/252 simplified gives 571/126
- So, 18/28 + 70/18 = 571/126
In mixed form: 467/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+70/18 18/56+70/18 18/28+70/36 54/28+70/18 18/84+70/18 18/28+70/54 90/28+70/18 18/28+70/90