Add 36/84 and 75/45
1st number: 36/84, 2nd number: 1 30/45
36/84 + 75/45 is 44/21.
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,
36/84 = 36 × 15/84 × 15 = 540/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
75/45 = 75 × 28/45 × 28 = 2100/1260 - Add the two like fractions:
540/1260 + 2100/1260 = 540 + 2100/1260 = 2640/1260 - 2640/1260 simplified gives 44/21
- So, 36/84 + 75/45 = 44/21
In mixed form: 22/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/84+75/45 36/84+75/90