Answers

Add 90/21 and 8/60

1^st number: 4 6/21, 2^nd number: 8/60

90/21 + 8/60 is 464/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 21 × 20 = 420,
   90/21 = 90 × 20/21 × 20 = 1800/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   8/60 = 8 × 7/60 × 7 = 56/420
4. Add the two like fractions:
   1800/420 + 56/420 = 1800 + 56/420 = 1856/420
5. 1856/420 simplified gives 464/105
6. So, 90/21 + 8/60 = 464/105
   In mixed form: 444/105

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