Answers

Add 56/5 and 90/72

1^st number: 11 1/5, 2^nd number: 1 18/72

56/5 + 90/72 is 249/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 5 × 72 = 360,
   56/5 = 56 × 72/5 × 72 = 4032/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   90/72 = 90 × 5/72 × 5 = 450/360
4. Add the two like fractions:
   4032/360 + 450/360 = 4032 + 450/360 = 4482/360
5. 4482/360 simplified gives 249/20
6. So, 56/5 + 90/72 = 249/20
   In mixed form: 129/20

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