Add 4/21 and 75/9
1st number: 4/21, 2nd number: 8 3/9
4/21 + 75/9 is 179/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
4/21 = 4 × 3/21 × 3 = 12/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
75/9 = 75 × 7/9 × 7 = 525/63 - Add the two like fractions:
12/63 + 525/63 = 12 + 525/63 = 537/63 - 537/63 simplified gives 179/21
- So, 4/21 + 75/9 = 179/21
In mixed form: 811/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21+75/9 4/42+75/9 4/21+75/18 12/21+75/9 4/63+75/9 4/21+75/27 20/21+75/9 4/21+75/45 28/21+75/9 4/21+75/63