Add 42/30 and 4/54
1st number: 1 12/30, 2nd number: 4/54
42/30 + 4/54 is 199/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
42/30 = 42 × 9/30 × 9 = 378/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
4/54 = 4 × 5/54 × 5 = 20/270 - Add the two like fractions:
378/270 + 20/270 = 378 + 20/270 = 398/270 - 398/270 simplified gives 199/135
- So, 42/30 + 4/54 = 199/135
In mixed form: 164/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+4/54 42/30+8/54 42/60+4/54 42/30+12/54 42/90+4/54 42/30+20/54 42/30+28/54