Answers

Add 45/7 and 84/80

1^st number: 6 3/7, 2^nd number: 1 4/80

45/7 + 84/80 is 1047/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 7 × 80 = 560,
   45/7 = 45 × 80/7 × 80 = 3600/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   84/80 = 84 × 7/80 × 7 = 588/560
4. Add the two like fractions:
   3600/560 + 588/560 = 3600 + 588/560 = 4188/560
5. 4188/560 simplified gives 1047/140
6. So, 45/7 + 84/80 = 1047/140
   In mixed form: 767/140

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