Add 18/70 and 70/4
1st number: 18/70, 2nd number: 17 2/4
18/70 + 70/4 is 1243/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
18/70 = 18 × 2/70 × 2 = 36/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
70/4 = 70 × 35/4 × 35 = 2450/140 - Add the two like fractions:
36/140 + 2450/140 = 36 + 2450/140 = 2486/140 - 2486/140 simplified gives 1243/70
- So, 18/70 + 70/4 = 1243/70
In mixed form: 1753/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+70/4 18/70+70/8 54/70+70/4 18/70+70/12 90/70+70/4 18/70+70/20 18/70+70/28