Answers

Add 18/84 and 40/48

18/84 + 40/48 is 22/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 48 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 84 × 4 = 336,
   18/84 = 18 × 4/84 × 4 = 72/336
3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
   40/48 = 40 × 7/48 × 7 = 280/336
4. Add the two like fractions:
   72/336 + 280/336 = 72 + 280/336 = 352/336
5. 352/336 simplified gives 22/21
6. So, 18/84 + 40/48 = 22/21
   In mixed form: 11/21

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