Answers

Add 7/84 and 63/45

1^st number: 7/84, 2^nd number: 1 18/45

7/84 + 63/45 is 89/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   7/84 = 7 × 15/84 × 15 = 105/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   63/45 = 63 × 28/45 × 28 = 1764/1260
4. Add the two like fractions:
   105/1260 + 1764/1260 = 105 + 1764/1260 = 1869/1260
5. 1869/1260 simplified gives 89/60
6. So, 7/84 + 63/45 = 89/60
   In mixed form: 129/60

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