Add 18/35 and 10/42
18/35 + 10/42 is 79/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
18/35 = 18 × 6/35 × 6 = 108/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210 - Add the two like fractions:
108/210 + 50/210 = 108 + 50/210 = 158/210 - 158/210 simplified gives 79/105
- So, 18/35 + 10/42 = 79/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/35+10/42 18/35+20/42 18/70+10/42 18/35+10/84 54/35+10/42 18/35+30/42 90/35+10/42 18/35+50/42 18/35+70/42