Add 42/60 and 18/56
42/60 + 18/56 is 143/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 60 × 14 = 840,
42/60 = 42 × 14/60 × 14 = 588/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
18/56 = 18 × 15/56 × 15 = 270/840 - Add the two like fractions:
588/840 + 270/840 = 588 + 270/840 = 858/840 - 858/840 simplified gives 143/140
- So, 42/60 + 18/56 = 143/140
In mixed form: 13/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+18/56 42/60+36/56 42/60+54/56 42/60+90/56