Add 54/35 and 42/45
1st number: 1 19/35, 2nd number: 42/45
54/35 + 42/45 is 52/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
54/35 = 54 × 9/35 × 9 = 486/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
42/45 = 42 × 7/45 × 7 = 294/315 - Add the two like fractions:
486/315 + 294/315 = 486 + 294/315 = 780/315 - 780/315 simplified gives 52/21
- So, 54/35 + 42/45 = 52/21
In mixed form: 210/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/35+84/45 54/70+42/45 54/35+42/90