Answers

Add 90/14 and 20/60

1^st number: 6 6/14, 2^nd number: 20/60

90/14 + 20/60 is 142/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 14 × 30 = 420,
   90/14 = 90 × 30/14 × 30 = 2700/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   20/60 = 20 × 7/60 × 7 = 140/420
4. Add the two like fractions:
   2700/420 + 140/420 = 2700 + 140/420 = 2840/420
5. 2840/420 simplified gives 142/21
6. So, 90/14 + 20/60 = 142/21
   In mixed form: 616/21

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