Add 18/42 and 5/10
18/42 + 5/10 is 13/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
18/42 = 18 × 5/42 × 5 = 90/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
5/10 = 5 × 21/10 × 21 = 105/210 - Add the two like fractions:
90/210 + 105/210 = 90 + 105/210 = 195/210 - 195/210 simplified gives 13/14
- So, 18/42 + 5/10 = 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/42+5/10 18/84+5/10 18/42+5/20 54/42+5/10 18/42+15/10 18/42+5/30 90/42+5/10 18/42+25/10 18/42+5/50 18/42+35/10 18/42+5/70