Add 16/21 and 75/30
1st number: 16/21, 2nd number: 2 15/30
16/21 + 75/30 is 137/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
16/21 = 16 × 10/21 × 10 = 160/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Add the two like fractions:
160/210 + 525/210 = 160 + 525/210 = 685/210 - 685/210 simplified gives 137/42
- So, 16/21 + 75/30 = 137/42
In mixed form: 311/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/21+75/30 16/42+75/30 16/21+75/60 48/21+75/30 16/63+75/30 16/21+75/90 80/21+75/30