Answers

Add 8/42 and 49/60

8/42 + 49/60 is 141/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   8/42 = 8 × 10/42 × 10 = 80/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   49/60 = 49 × 7/60 × 7 = 343/420
4. Add the two like fractions:
   80/420 + 343/420 = 80 + 343/420 = 423/420
5. 423/420 simplified gives 141/140
6. So, 8/42 + 49/60 = 141/140
   In mixed form: 11/140

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