Add 24/21 and 16/18
1st number: 1 3/21, 2nd number: 16/18
24/21 + 16/18 is 128/63.
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,
24/21 = 24 × 6/21 × 6 = 144/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
16/18 = 16 × 7/18 × 7 = 112/126 - Add the two like fractions:
144/126 + 112/126 = 144 + 112/126 = 256/126 - 256/126 simplified gives 128/63
- So, 24/21 + 16/18 = 128/63
In mixed form: 22/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+16/18 24/21+32/18 24/42+16/18 24/21+16/36 72/21+16/18 24/21+48/18 24/63+16/18 24/21+16/54 24/21+80/18 24/21+16/90