Answers

Add 35/42 and 36/80

35/42 + 36/80 is 77/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 42 × 40 = 1680,
   35/42 = 35 × 40/42 × 40 = 1400/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   36/80 = 36 × 21/80 × 21 = 756/1680
4. Add the two like fractions:
   1400/1680 + 756/1680 = 1400 + 756/1680 = 2156/1680
5. 2156/1680 simplified gives 77/60
6. So, 35/42 + 36/80 = 77/60
   In mixed form: 117/60

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