Answers

Add 40/75 and 42/12

1^st number: 40/75, 2^nd number: 3 6/12

40/75 + 42/12 is 121/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 12 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 75 × 4 = 300,
   40/75 = 40 × 4/75 × 4 = 160/300
3. Likewise, for the 2nd fraction, since 12 × 25 = 300,
   42/12 = 42 × 25/12 × 25 = 1050/300
4. Add the two like fractions:
   160/300 + 1050/300 = 160 + 1050/300 = 1210/300
5. 1210/300 simplified gives 121/30
6. So, 40/75 + 42/12 = 121/30
   In mixed form: 41/30

MathStep (Works offline)

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

Related: ⁸⁰/₇₅+⁴²/₁₂ ⁴⁰/₇₅+⁸⁴/₁₂ ⁴⁰/₇₅+⁴²/₂₄ ⁴⁰/₇₅+⁴²/₃₆ ⁴⁰/₇₅+⁴²/₆₀ ⁴⁰/₇₅+⁴²/₈₄

Add Fractions Calculator