Add 4/84 and 28/45
4/84 + 28/45 is 211/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
4/84 = 4 × 15/84 × 15 = 60/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
28/45 = 28 × 28/45 × 28 = 784/1260 - Add the two like fractions:
60/1260 + 784/1260 = 60 + 784/1260 = 844/1260 - 844/1260 simplified gives 211/315
- So, 4/84 + 28/45 = 211/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+28/45 4/84+56/45 4/84+28/90 12/84+28/45 4/84+84/45 20/84+28/45 28/84+28/45