Add 45/70 and 50/18
1st number: 45/70, 2nd number: 2 14/18
45/70 + 50/18 is 431/126.
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,
45/70 = 45 × 9/70 × 9 = 405/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
50/18 = 50 × 35/18 × 35 = 1750/630 - Add the two like fractions:
405/630 + 1750/630 = 405 + 1750/630 = 2155/630 - 2155/630 simplified gives 431/126
- So, 45/70 + 50/18 = 431/126
In mixed form: 353/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+50/18 45/70+50/36 45/70+50/54 45/70+50/90