Add 36/21 and 4/24
1st number: 1 15/21, 2nd number: 4/24
36/21 + 4/24 is 79/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
36/21 = 36 × 8/21 × 8 = 288/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
4/24 = 4 × 7/24 × 7 = 28/168 - Add the two like fractions:
288/168 + 28/168 = 288 + 28/168 = 316/168 - 316/168 simplified gives 79/42
- So, 36/21 + 4/24 = 79/42
In mixed form: 137/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+4/24 36/21+8/24 36/42+4/24 36/21+4/48 36/21+12/24 36/63+4/24 36/21+4/72 36/21+20/24 36/21+28/24