Answers

Add 7/4 and 90/72

1^st number: 1 3/4, 2^nd number: 1 18/72

7/4 + 90/72 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 4 × 18 = 72,
   7/4 = 7 × 18/4 × 18 = 126/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   90/72 = 90 × 1/72 × 1 = 90/72
4. Add the two like fractions:
   126/72 + 90/72 = 126 + 90/72 = 216/72
5. 216/72 simplified gives 3/1
6. So, 7/4 + 90/72 = 3/1

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