Add 24/42 and 54/70
24/42 + 54/70 is 47/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
24/42 = 24 × 5/42 × 5 = 120/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
54/70 = 54 × 3/70 × 3 = 162/210 - Add the two like fractions:
120/210 + 162/210 = 120 + 162/210 = 282/210 - 282/210 simplified gives 47/35
- So, 24/42 + 54/70 = 47/35
In mixed form: 112/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/42+54/70 24/84+54/70 72/42+54/70