Answers

Add 90/72 and 27/80

1^st number: 1 18/72, 2^nd number: 27/80

90/72 + 27/80 is 127/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 72 × 10 = 720,
   90/72 = 90 × 10/72 × 10 = 900/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   27/80 = 27 × 9/80 × 9 = 243/720
4. Add the two like fractions:
   900/720 + 243/720 = 900 + 243/720 = 1143/720
5. 1143/720 simplified gives 127/80
6. So, 90/72 + 27/80 = 127/80
   In mixed form: 147/80

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