Add 24/21 and 5/80
1st number: 1 3/21, 2nd number: 5/80
24/21 + 5/80 is 135/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
24/21 = 24 × 80/21 × 80 = 1920/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
5/80 = 5 × 21/80 × 21 = 105/1680 - Add the two like fractions:
1920/1680 + 105/1680 = 1920 + 105/1680 = 2025/1680 - 2025/1680 simplified gives 135/112
- So, 24/21 + 5/80 = 135/112
In mixed form: 123/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+5/80 24/21+10/80 24/42+5/80 72/21+5/80 24/21+15/80 24/63+5/80 24/21+25/80 24/21+35/80