Answers

Add 70/80 and 70/18

1^st number: 70/80, 2^nd number: 3 16/18

70/80 + 70/18 is 343/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 18 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   70/80 = 70 × 9/80 × 9 = 630/720
3. Likewise, for the 2nd fraction, since 18 × 40 = 720,
   70/18 = 70 × 40/18 × 40 = 2800/720
4. Add the two like fractions:
   630/720 + 2800/720 = 630 + 2800/720 = 3430/720
5. 3430/720 simplified gives 343/72
6. So, 70/80 + 70/18 = 343/72
   In mixed form: 455/72

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