Answers

Add 90/20 and 60/8

1^st number: 4 10/20, 2^nd number: 7 4/8

90/20 + 60/8 is 12/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 8 is 40
2. For the 1st fraction, since 20 × 2 = 40,
   90/20 = 90 × 2/20 × 2 = 180/40
3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
   60/8 = 60 × 5/8 × 5 = 300/40
4. Add the two fractions:
   180/40 + 300/40 = 180 + 300/40 = 480/40
5. 480/40 simplified gives 12/1
6. So, 90/20 + 60/8 = 12/1

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