Add 36/45 and 50/21
1st number: 36/45, 2nd number: 2 8/21
36/45 + 50/21 is 334/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
36/45 = 36 × 7/45 × 7 = 252/315 - Likewise, for the 2nd fraction, since 21 × 15 = 315,
50/21 = 50 × 15/21 × 15 = 750/315 - Add the two like fractions:
252/315 + 750/315 = 252 + 750/315 = 1002/315 - 1002/315 simplified gives 334/105
- So, 36/45 + 50/21 = 334/105
In mixed form: 319/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+50/21 36/90+50/21 36/45+50/42 36/45+50/63