Add 9/21 and 70/16
1st number: 9/21, 2nd number: 4 6/16
9/21 + 70/16 is 269/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
9/21 = 9 × 16/21 × 16 = 144/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
70/16 = 70 × 21/16 × 21 = 1470/336 - Add the two like fractions:
144/336 + 1470/336 = 144 + 1470/336 = 1614/336 - 1614/336 simplified gives 269/56
- So, 9/21 + 70/16 = 269/56
In mixed form: 445/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21+70/16 9/42+70/16 9/21+70/32 27/21+70/16 9/63+70/16 9/21+70/48 45/21+70/16 9/21+70/80 63/21+70/16