Add 54/42 and 72/25
1st number: 1 12/42, 2nd number: 2 22/25
54/42 + 72/25 is 729/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
54/42 = 54 × 25/42 × 25 = 1350/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
72/25 = 72 × 42/25 × 42 = 3024/1050 - Add the two like fractions:
1350/1050 + 3024/1050 = 1350 + 3024/1050 = 4374/1050 - 4374/1050 simplified gives 729/175
- So, 54/42 + 72/25 = 729/175
In mixed form: 429/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+72/25 54/42+72/50 54/42+72/75