Add 4/45 and 28/84
4/45 + 28/84 is 19/45.
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,
4/45 = 4 × 28/45 × 28 = 112/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
28/84 = 28 × 15/84 × 15 = 420/1260 - Add the two like fractions:
112/1260 + 420/1260 = 112 + 420/1260 = 532/1260 - 532/1260 simplified gives 19/45
- So, 4/45 + 28/84 = 19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45+28/84 4/45+56/84 4/90+28/84 12/45+28/84 20/45+28/84 28/45+28/84