Add 36/21 and 40/18
1st number: 1 15/21, 2nd number: 2 4/18
36/21 + 40/18 is 248/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
36/21 = 36 × 6/21 × 6 = 216/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
40/18 = 40 × 7/18 × 7 = 280/126 - Add the two like fractions:
216/126 + 280/126 = 216 + 280/126 = 496/126 - 496/126 simplified gives 248/63
- So, 36/21 + 40/18 = 248/63
In mixed form: 359/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+40/18 36/21+80/18 36/42+40/18 36/21+40/36 36/63+40/18 36/21+40/54 36/21+40/90