Add 1/21 and 16/80
1/21 + 16/80 is 26/105.
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,
1/21 = 1 × 80/21 × 80 = 80/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
16/80 = 16 × 21/80 × 21 = 336/1680 - Add the two like fractions:
80/1680 + 336/1680 = 80 + 336/1680 = 416/1680 - 416/1680 simplified gives 26/105
- So, 1/21 + 16/80 = 26/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+16/80 1/21+32/80 1/42+16/80 3/21+16/80 1/21+48/80 1/63+16/80 5/21+16/80 7/21+16/80