Answers

Add 42/80 and 75/56

1^st number: 42/80, 2^nd number: 1 19/56

42/80 + 75/56 is 261/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 56 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   42/80 = 42 × 7/80 × 7 = 294/560
3. Likewise, for the 2nd fraction, since 56 × 10 = 560,
   75/56 = 75 × 10/56 × 10 = 750/560
4. Add the two like fractions:
   294/560 + 750/560 = 294 + 750/560 = 1044/560
5. 1044/560 simplified gives 261/140
6. So, 42/80 + 75/56 = 261/140
   In mixed form: 1121/140

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₈₀+⁷⁵/₅₆

Add Fractions Calculator