Answers

Add 5/8 and 90/72

1^st number: 5/8, 2^nd number: 1 18/72

5/8 + 90/72 is 15/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 8 × 9 = 72,
   5/8 = 5 × 9/8 × 9 = 45/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   90/72 = 90 × 1/72 × 1 = 90/72
4. Add the two like fractions:
   45/72 + 90/72 = 45 + 90/72 = 135/72
5. 135/72 simplified gives 15/8
6. So, 5/8 + 90/72 = 15/8
   In mixed form: 17/8

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