Answers

Add 7/20 and 75/72

1^st number: 7/20, 2^nd number: 1 3/72

7/20 + 75/72 is 167/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 20 × 18 = 360,
   7/20 = 7 × 18/20 × 18 = 126/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   75/72 = 75 × 5/72 × 5 = 375/360
4. Add the two like fractions:
   126/360 + 375/360 = 126 + 375/360 = 501/360
5. 501/360 simplified gives 167/120
6. So, 7/20 + 75/72 = 167/120
   In mixed form: 147/120

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