Answers

Add 54/75 and 42/72

54/75 + 42/72 is 391/300.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 72 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 75 × 24 = 1800,
   54/75 = 54 × 24/75 × 24 = 1296/1800
3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
   42/72 = 42 × 25/72 × 25 = 1050/1800
4. Add the two like fractions:
   1296/1800 + 1050/1800 = 1296 + 1050/1800 = 2346/1800
5. 2346/1800 simplified gives 391/300
6. So, 54/75 + 42/72 = 391/300
   In mixed form: 191/300

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