Answers

Add 75/72 and 72/20

1^st number: 1 3/72, 2^nd number: 3 12/20

75/72 + 72/20 is 557/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 20 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   75/72 = 75 × 5/72 × 5 = 375/360
3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
   72/20 = 72 × 18/20 × 18 = 1296/360
4. Add the two like fractions:
   375/360 + 1296/360 = 375 + 1296/360 = 1671/360
5. 1671/360 simplified gives 557/120
6. So, 75/72 + 72/20 = 557/120
   In mixed form: 477/120

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