Add 72/84 and 36/25
1st number: 72/84, 2nd number: 1 11/25
72/84 + 36/25 is 402/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 25 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
72/84 = 72 × 25/84 × 25 = 1800/2100 - Likewise, for the 2nd fraction, since 25 × 84 = 2100,
36/25 = 36 × 84/25 × 84 = 3024/2100 - Add the two like fractions:
1800/2100 + 3024/2100 = 1800 + 3024/2100 = 4824/2100 - 4824/2100 simplified gives 402/175
- So, 72/84 + 36/25 = 402/175
In mixed form: 252/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/84+72/25 72/84+36/50 72/84+36/75