Add 8/30 and 10/21
8/30 + 10/21 is 26/35.
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,
8/30 = 8 × 7/30 × 7 = 56/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
10/21 = 10 × 10/21 × 10 = 100/210 - Add the two like fractions:
56/210 + 100/210 = 56 + 100/210 = 156/210 - 156/210 simplified gives 26/35
- So, 8/30 + 10/21 = 26/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30+10/21 8/30+20/21 8/60+10/21 8/30+10/42 24/30+10/21 8/30+30/21 8/90+10/21 8/30+10/63 40/30+10/21 8/30+50/21 56/30+10/21 8/30+70/21