Add 36/21 and 5/4
1st number: 1 15/21, 2nd number: 1 1/4
36/21 + 5/4 is 83/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
36/21 = 36 × 4/21 × 4 = 144/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
5/4 = 5 × 21/4 × 21 = 105/84 - Add the two like fractions:
144/84 + 105/84 = 144 + 105/84 = 249/84 - 249/84 simplified gives 83/28
- So, 36/21 + 5/4 = 83/28
In mixed form: 227/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+5/4 36/21+10/4 36/42+5/4 36/21+5/8 36/21+15/4 36/63+5/4 36/21+5/12 36/21+25/4 36/21+5/20 36/21+35/4 36/21+5/28