Add 56/18 and 18/45
1st number: 3 2/18, 2nd number: 18/45
56/18 + 18/45 is 158/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
56/18 = 56 × 5/18 × 5 = 280/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Add the two like fractions:
280/90 + 36/90 = 280 + 36/90 = 316/90 - 316/90 simplified gives 158/45
- So, 56/18 + 18/45 = 158/45
In mixed form: 323/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18+36/45 56/36+18/45 56/18+18/90 56/18+54/45 56/54+18/45 56/18+90/45 56/90+18/45