Answers

Add 81/4 and 70/75

1^st number: 20 1/4, 2^nd number: 70/75

81/4 + 70/75 is 1271/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 75 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 4 × 75 = 300,
   81/4 = 81 × 75/4 × 75 = 6075/300
3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
   70/75 = 70 × 4/75 × 4 = 280/300
4. Add the two like fractions:
   6075/300 + 280/300 = 6075 + 280/300 = 6355/300
5. 6355/300 simplified gives 1271/60
6. So, 81/4 + 70/75 = 1271/60
   In mixed form: 2111/60

MathStep (Works offline)

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

Related: ⁸¹/₈+⁷⁰/₇₅ ⁸¹/₁₂+⁷⁰/₇₅ ⁸¹/₂₀+⁷⁰/₇₅ ⁸¹/₂₈+⁷⁰/₇₅

Add Fractions Calculator