Add 24/80 and 25/21
1st number: 24/80, 2nd number: 1 4/21
24/80 + 25/21 is 313/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
24/80 = 24 × 21/80 × 21 = 504/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
25/21 = 25 × 80/21 × 80 = 2000/1680 - Add the two like fractions:
504/1680 + 2000/1680 = 504 + 2000/1680 = 2504/1680 - 2504/1680 simplified gives 313/210
- So, 24/80 + 25/21 = 313/210
In mixed form: 1103/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/80+25/21 24/80+50/21 24/80+25/42 72/80+25/21 24/80+75/21 24/80+25/63