Add 9/21 and 16/80
9/21 + 16/80 is 22/35.
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,
9/21 = 9 × 80/21 × 80 = 720/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
16/80 = 16 × 21/80 × 21 = 336/1680 - Add the two like fractions:
720/1680 + 336/1680 = 720 + 336/1680 = 1056/1680 - 1056/1680 simplified gives 22/35
- So, 9/21 + 16/80 = 22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21+16/80 9/21+32/80 9/42+16/80 27/21+16/80 9/21+48/80 9/63+16/80 45/21+16/80 63/21+16/80