Add 45/21 and 50/18
1st number: 2 3/21, 2nd number: 2 14/18
45/21 + 50/18 is 310/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
45/21 = 45 × 6/21 × 6 = 270/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
50/18 = 50 × 7/18 × 7 = 350/126 - Add the two like fractions:
270/126 + 350/126 = 270 + 350/126 = 620/126 - 620/126 simplified gives 310/63
- So, 45/21 + 50/18 = 310/63
In mixed form: 458/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+50/18 45/42+50/18 45/21+50/36 45/63+50/18 45/21+50/54 45/21+50/90