Add 9/84 and 75/45
1st number: 9/84, 2nd number: 1 30/45
9/84 + 75/45 is 149/84.
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,
9/84 = 9 × 15/84 × 15 = 135/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
75/45 = 75 × 28/45 × 28 = 2100/1260 - Add the two like fractions:
135/1260 + 2100/1260 = 135 + 2100/1260 = 2235/1260 - 2235/1260 simplified gives 149/84
- So, 9/84 + 75/45 = 149/84
In mixed form: 165/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84+75/45 9/84+75/90 27/84+75/45 45/84+75/45 63/84+75/45