Add 42/54 and 36/30
1st number: 42/54, 2nd number: 1 6/30
42/54 + 36/30 is 89/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
36/30 = 36 × 9/30 × 9 = 324/270 - Add the two like fractions:
210/270 + 324/270 = 210 + 324/270 = 534/270 - 534/270 simplified gives 89/45
- So, 42/54 + 36/30 = 89/45
In mixed form: 144/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54+36/30 42/54+72/30 42/54+36/60 42/54+36/90