Answers

Add 3/84 and 60/40

1^st number: 3/84, 2^nd number: 1 20/40

3/84 + 60/40 is 43/28.

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,
   3/84 = 3 × 10/84 × 10 = 30/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   60/40 = 60 × 21/40 × 21 = 1260/840
4. Add the two like fractions:
   30/840 + 1260/840 = 30 + 1260/840 = 1290/840
5. 1290/840 simplified gives 43/28
6. So, 3/84 + 60/40 = 43/28
   In mixed form: 115/28

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