Add 4/84 and 4/45
4/84 + 4/45 is 43/315.
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,
4/45 = 4 × 28/45 × 28 = 112/1260 - Add the two like fractions:
60/1260 + 112/1260 = 60 + 112/1260 = 172/1260 - 172/1260 simplified gives 43/315
- So, 4/84 + 4/45 = 43/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+4/45 4/84+8/45 4/84+4/90 12/84+4/45 4/84+12/45 20/84+4/45 4/84+20/45 28/84+4/45 4/84+28/45