Answers

Add 56/21 and 54/40

1^st number: 2 14/21, 2^nd number: 1 14/40

56/21 + 54/40 is 241/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 21 × 40 = 840,
   56/21 = 56 × 40/21 × 40 = 2240/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   54/40 = 54 × 21/40 × 21 = 1134/840
4. Add the two like fractions:
   2240/840 + 1134/840 = 2240 + 1134/840 = 3374/840
5. 3374/840 simplified gives 241/60
6. So, 56/21 + 54/40 = 241/60
   In mixed form: 41/60

MathStep (Works offline)

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

Related: ⁵⁶/₄₂+⁵⁴/₄₀ ⁵⁶/₂₁+⁵⁴/₈₀ ⁵⁶/₆₃+⁵⁴/₄₀

Add Fractions Calculator