Add 42/10 and 15/54
1st number: 4 2/10, 2nd number: 15/54
42/10 + 15/54 is 403/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
42/10 = 42 × 27/10 × 27 = 1134/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
15/54 = 15 × 5/54 × 5 = 75/270 - Add the two like fractions:
1134/270 + 75/270 = 1134 + 75/270 = 1209/270 - 1209/270 simplified gives 403/90
- So, 42/10 + 15/54 = 403/90
In mixed form: 443/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+15/54 42/10+30/54 42/20+15/54 42/10+45/54 42/30+15/54 42/10+75/54 42/50+15/54 42/70+15/54