Add 18/56 and 84/45
1st number: 18/56, 2nd number: 1 39/45
18/56 + 84/45 is 919/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
18/56 = 18 × 45/56 × 45 = 810/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
84/45 = 84 × 56/45 × 56 = 4704/2520 - Add the two like fractions:
810/2520 + 4704/2520 = 810 + 4704/2520 = 5514/2520 - 5514/2520 simplified gives 919/420
- So, 18/56 + 84/45 = 919/420
In mixed form: 279/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+84/45 18/56+84/90 54/56+84/45 90/56+84/45