Answers

Add 35/21 and 36/40

1^st number: 1 14/21, 2^nd number: 36/40

35/21 + 36/40 is 77/30.

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,
   35/21 = 35 × 40/21 × 40 = 1400/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   36/40 = 36 × 21/40 × 21 = 756/840
4. Add the two like fractions:
   1400/840 + 756/840 = 1400 + 756/840 = 2156/840
5. 2156/840 simplified gives 77/30
6. So, 35/21 + 36/40 = 77/30
   In mixed form: 217/30

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