Add 2/90 and 28/84
2/90 + 28/84 is 16/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
2/90 = 2 × 14/90 × 14 = 28/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
28/84 = 28 × 15/84 × 15 = 420/1260 - Add the two like fractions:
28/1260 + 420/1260 = 28 + 420/1260 = 448/1260 - 448/1260 simplified gives 16/45
- So, 2/90 + 28/84 = 16/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90+28/84 2/90+56/84 6/90+28/84 10/90+28/84 14/90+28/84