Answers

Add 2/90 and 63/20

1^st number: 2/90, 2^nd number: 3 3/20

2/90 + 63/20 is 571/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 20 is 180
2. For the 1st fraction, since 90 × 2 = 180,
   2/90 = 2 × 2/90 × 2 = 4/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   63/20 = 63 × 9/20 × 9 = 567/180
4. Add the two fractions:
   4/180 + 567/180 = 4 + 567/180 = 571/180
5. In mixed form: 331/180

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