Add 28/45 and 54/84
28/45 + 54/84 is 797/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
28/45 = 28 × 28/45 × 28 = 784/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
54/84 = 54 × 15/84 × 15 = 810/1260 - Add the two like fractions:
784/1260 + 810/1260 = 784 + 810/1260 = 1594/1260 - 1594/1260 simplified gives 797/630
- So, 28/45 + 54/84 = 797/630
In mixed form: 1167/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+54/84 28/90+54/84 84/45+54/84