Answers

Add 40/80 and 84/45

1^st number: 40/80, 2^nd number: 1 39/45

40/80 + 84/45 is 71/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 45 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   40/80 = 40 × 9/80 × 9 = 360/720
3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
   84/45 = 84 × 16/45 × 16 = 1344/720
4. Add the two like fractions:
   360/720 + 1344/720 = 360 + 1344/720 = 1704/720
5. 1704/720 simplified gives 71/30
6. So, 40/80 + 84/45 = 71/30
   In mixed form: 211/30

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