Add 9/21 and 18/32
9/21 + 18/32 is 111/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
9/21 = 9 × 32/21 × 32 = 288/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
18/32 = 18 × 21/32 × 21 = 378/672 - Add the two like fractions:
288/672 + 378/672 = 288 + 378/672 = 666/672 - 666/672 simplified gives 111/112
- So, 9/21 + 18/32 = 111/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21+18/32 9/21+36/32 9/42+18/32 9/21+18/64 27/21+18/32 9/21+54/32 9/63+18/32 9/21+18/96 45/21+18/32 9/21+90/32 63/21+18/32