Add 18/10 and 7/42
1st number: 1 8/10, 2nd number: 7/42
18/10 + 7/42 is 59/30.
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,
18/10 = 18 × 21/10 × 21 = 378/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
7/42 = 7 × 5/42 × 5 = 35/210 - Add the two like fractions:
378/210 + 35/210 = 378 + 35/210 = 413/210 - 413/210 simplified gives 59/30
- So, 18/10 + 7/42 = 59/30
In mixed form: 129/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10+7/42 18/10+14/42 18/20+7/42 18/10+7/84 54/10+7/42 18/10+21/42 18/30+7/42 90/10+7/42 18/10+35/42 18/50+7/42 18/10+49/42 18/70+7/42