Add 25/84 and 40/45
25/84 + 40/45 is 299/252.
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,
25/84 = 25 × 15/84 × 15 = 375/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
40/45 = 40 × 28/45 × 28 = 1120/1260 - Add the two like fractions:
375/1260 + 1120/1260 = 375 + 1120/1260 = 1495/1260 - 1495/1260 simplified gives 299/252
- So, 25/84 + 40/45 = 299/252
In mixed form: 147/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/84+40/45 25/84+80/45 25/84+40/90 75/84+40/45