Add 75/42 and 28/45
1st number: 1 33/42, 2nd number: 28/45
75/42 + 28/45 is 1517/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
75/42 = 75 × 15/42 × 15 = 1125/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
28/45 = 28 × 14/45 × 14 = 392/630 - Add the two like fractions:
1125/630 + 392/630 = 1125 + 392/630 = 1517/630 - So, 75/42 + 28/45 = 1517/630
In mixed form: 2257/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/42+56/45 75/84+28/45 75/42+28/90 75/42+84/45