Add 8/30 and 7/70
8/30 + 7/70 is 11/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 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 70 × 3 = 210,
7/70 = 7 × 3/70 × 3 = 21/210 - Add the two like fractions:
56/210 + 21/210 = 56 + 21/210 = 77/210 - 77/210 simplified gives 11/30
- So, 8/30 + 7/70 = 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/30+7/70 8/30+14/70 8/60+7/70 24/30+7/70 8/30+21/70 8/90+7/70 40/30+7/70 8/30+35/70 56/30+7/70 8/30+49/70