Add 8/10 and 7/42
8/10 + 7/42 is 29/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
8/10 = 8 × 21/10 × 21 = 168/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
7/42 = 7 × 5/42 × 5 = 35/210 - Add the two like fractions:
168/210 + 35/210 = 168 + 35/210 = 203/210 - 203/210 simplified gives 29/30
- So, 8/10 + 7/42 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10+7/42 8/10+14/42 8/20+7/42 8/10+7/84 24/10+7/42 8/10+21/42 8/30+7/42 40/10+7/42 8/10+35/42 8/50+7/42 56/10+7/42 8/10+49/42 8/70+7/42