Add 81/18 and 18/35
1st number: 4 9/18, 2nd number: 18/35
81/18 + 18/35 is 351/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
81/18 = 81 × 35/18 × 35 = 2835/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
18/35 = 18 × 18/35 × 18 = 324/630 - Add the two like fractions:
2835/630 + 324/630 = 2835 + 324/630 = 3159/630 - 3159/630 simplified gives 351/70
- So, 81/18 + 18/35 = 351/70
In mixed form: 51/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18+36/35 81/36+18/35 81/18+18/70 81/18+54/35 81/54+18/35 81/18+90/35 81/90+18/35