Add 1/70 and 21/18
1st number: 1/70, 2nd number: 1 3/18
1/70 + 21/18 is 124/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
1/70 = 1 × 9/70 × 9 = 9/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
21/18 = 21 × 35/18 × 35 = 735/630 - Add the two like fractions:
9/630 + 735/630 = 9 + 735/630 = 744/630 - 744/630 simplified gives 124/105
- So, 1/70 + 21/18 = 124/105
In mixed form: 119/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+21/18 1/70+42/18 1/70+21/36 3/70+21/18 1/70+63/18 1/70+21/54 5/70+21/18 1/70+21/90 7/70+21/18