Answers

Add 90/20 and 1/12

1^st number: 4 10/20, 2^nd number: 1/12

90/20 + 1/12 is 55/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 12 is 60
2. For the 1st fraction, since 20 × 3 = 60,
   90/20 = 90 × 3/20 × 3 = 270/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   1/12 = 1 × 5/12 × 5 = 5/60
4. Add the two fractions:
   270/60 + 5/60 = 270 + 5/60 = 275/60
5. 275/60 simplified gives 55/12
6. So, 90/20 + 1/12 = 55/12
   In mixed form: 47/12

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