Add 24/21 and 3/80
1st number: 1 3/21, 2nd number: 3/80
24/21 + 3/80 is 661/560.
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,
3/80 = 3 × 21/80 × 21 = 63/1680 - Add the two like fractions:
1920/1680 + 63/1680 = 1920 + 63/1680 = 1983/1680 - 1983/1680 simplified gives 661/560
- So, 24/21 + 3/80 = 661/560
In mixed form: 1101/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+3/80 24/21+6/80 24/42+3/80 72/21+3/80 24/21+9/80 24/63+3/80 24/21+15/80 24/21+21/80