Answers

Add 50/21 and 25/40

1^st number: 2 8/21, 2^nd number: 25/40

50/21 + 25/40 is 505/168.

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,
   50/21 = 50 × 40/21 × 40 = 2000/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   25/40 = 25 × 21/40 × 21 = 525/840
4. Add the two like fractions:
   2000/840 + 525/840 = 2000 + 525/840 = 2525/840
5. 2525/840 simplified gives 505/168
6. So, 50/21 + 25/40 = 505/168
   In mixed form: 31/168

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