Add 96/30 and 70/21
1st number: 3 6/30, 2nd number: 3 7/21
96/30 + 70/21 is 98/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
96/30 = 96 × 7/30 × 7 = 672/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210 - Add the two like fractions:
672/210 + 700/210 = 672 + 700/210 = 1372/210 - 1372/210 simplified gives 98/15
- So, 96/30 + 70/21 = 98/15
In mixed form: 68/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/60+70/21 96/30+70/42 96/90+70/21 96/30+70/63