Add 42/48 and 30/27
1st number: 42/48, 2nd number: 1 3/27
42/48 + 30/27 is 143/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 27 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 48 × 9 = 432,
42/48 = 42 × 9/48 × 9 = 378/432 - Likewise, for the 2nd fraction, since 27 × 16 = 432,
30/27 = 30 × 16/27 × 16 = 480/432 - Add the two like fractions:
378/432 + 480/432 = 378 + 480/432 = 858/432 - 858/432 simplified gives 143/72
- So, 42/48 + 30/27 = 143/72
In mixed form: 171/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48+30/27 42/48+60/27 42/96+30/27 42/48+30/54 42/48+90/27 42/48+30/81