Add 42/35 and 18/24
1st number: 1 7/35, 2nd number: 18/24
42/35 + 18/24 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 35 × 24 = 840,
42/35 = 42 × 24/35 × 24 = 1008/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
18/24 = 18 × 35/24 × 35 = 630/840 - Add the two like fractions:
1008/840 + 630/840 = 1008 + 630/840 = 1638/840 - 1638/840 simplified gives 39/20
- So, 42/35 + 18/24 = 39/20
In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+18/24 42/35+36/24 42/70+18/24 42/35+18/48 42/35+54/24 42/35+18/72 42/35+90/24