Answers

Add 90/63 and 4/30

1^st number: 1 27/63, 2^nd number: 4/30

90/63 + 4/30 is 164/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 30 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   90/63 = 90 × 10/63 × 10 = 900/630
3. Likewise, for the 2nd fraction, since 30 × 21 = 630,
   4/30 = 4 × 21/30 × 21 = 84/630
4. Add the two like fractions:
   900/630 + 84/630 = 900 + 84/630 = 984/630
5. 984/630 simplified gives 164/105
6. So, 90/63 + 4/30 = 164/105
   In mixed form: 159/105

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