Add 84/56 and 40/45
1st number: 1 28/56, 2nd number: 40/45
84/56 + 40/45 is 43/18.
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,
84/56 = 84 × 45/56 × 45 = 3780/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
40/45 = 40 × 56/45 × 56 = 2240/2520 - Add the two like fractions:
3780/2520 + 2240/2520 = 3780 + 2240/2520 = 6020/2520 - 6020/2520 simplified gives 43/18
- So, 84/56 + 40/45 = 43/18
In mixed form: 27/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+80/45 84/56+40/90