Answers

Add 4/90 and 63/60

1^st number: 4/90, 2^nd number: 1 3/60

4/90 + 63/60 is 197/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 60 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   4/90 = 4 × 2/90 × 2 = 8/180
3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
   63/60 = 63 × 3/60 × 3 = 189/180
4. Add the two like fractions:
   8/180 + 189/180 = 8 + 189/180 = 197/180
5. So, 4/90 + 63/60 = 197/180
   In mixed form: 117/180

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