Add 42/20 and 54/25
1st number: 2 2/20, 2nd number: 2 4/25
42/20 + 54/25 is 213/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
42/20 = 42 × 5/20 × 5 = 210/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
54/25 = 54 × 4/25 × 4 = 216/100 - Add the two like fractions:
210/100 + 216/100 = 210 + 216/100 = 426/100 - 426/100 simplified gives 213/50
- So, 42/20 + 54/25 = 213/50
In mixed form: 413/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+54/25 42/40+54/25 42/20+54/50 42/60+54/25 42/20+54/75