Add 3/80 and 6/21
3/80 + 6/21 is 181/560.
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,
3/80 = 3 × 21/80 × 21 = 63/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
6/21 = 6 × 80/21 × 80 = 480/1680 - Add the two like fractions:
63/1680 + 480/1680 = 63 + 480/1680 = 543/1680 - 543/1680 simplified gives 181/560
- So, 3/80 + 6/21 = 181/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80+6/21 3/80+12/21 3/80+6/42 9/80+6/21 3/80+18/21 3/80+6/63 15/80+6/21 3/80+30/21 21/80+6/21 3/80+42/21