Add 42/48 and 84/54
1st number: 42/48, 2nd number: 1 30/54
42/48 + 84/54 is 175/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 54 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 54 × 8 = 432,
84/54 = 84 × 8/54 × 8 = 672/432 - Add the two like fractions:
378/432 + 672/432 = 378 + 672/432 = 1050/432 - 1050/432 simplified gives 175/72
- So, 42/48 + 84/54 = 175/72
In mixed form: 231/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48+84/54 42/96+84/54