Answers

Add 1/84 and 45/40

1^st number: 1/84, 2^nd number: 1 5/40

1/84 + 45/40 is 191/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 84 × 10 = 840,
   1/84 = 1 × 10/84 × 10 = 10/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   45/40 = 45 × 21/40 × 21 = 945/840
4. Add the two like fractions:
   10/840 + 945/840 = 10 + 945/840 = 955/840
5. 955/840 simplified gives 191/168
6. So, 1/84 + 45/40 = 191/168
   In mixed form: 123/168

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