Answers

Add 42/60 and 25/42

42/60 + 25/42 is 136/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 42 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   42/60 = 42 × 7/60 × 7 = 294/420
3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
   25/42 = 25 × 10/42 × 10 = 250/420
4. Add the two like fractions:
   294/420 + 250/420 = 294 + 250/420 = 544/420
5. 544/420 simplified gives 136/105
6. So, 42/60 + 25/42 = 136/105
   In mixed form: 131/105

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