Answers

Add 72/10 and 42/54

1^st number: 7 2/10, 2^nd number: 42/54

72/10 + 42/54 is 359/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 10 × 27 = 270,
   72/10 = 72 × 27/10 × 27 = 1944/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   42/54 = 42 × 5/54 × 5 = 210/270
4. Add the two like fractions:
   1944/270 + 210/270 = 1944 + 210/270 = 2154/270
5. 2154/270 simplified gives 359/45
6. So, 72/10 + 42/54 = 359/45
   In mixed form: 744/45

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