Answers

Add 18/84 and 7/8

18/84 + 7/8 is 61/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   18/84 = 18 × 2/84 × 2 = 36/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   7/8 = 7 × 21/8 × 21 = 147/168
4. Add the two like fractions:
   36/168 + 147/168 = 36 + 147/168 = 183/168
5. 183/168 simplified gives 61/56
6. So, 18/84 + 7/8 = 61/56
   In mixed form: 15/56

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