Answers

Add 72/45 and 42/48

1^st number: 1 27/45, 2^nd number: 42/48

72/45 + 42/48 is 99/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 48 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 45 × 16 = 720,
   72/45 = 72 × 16/45 × 16 = 1152/720
3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
   42/48 = 42 × 15/48 × 15 = 630/720
4. Add the two like fractions:
   1152/720 + 630/720 = 1152 + 630/720 = 1782/720
5. 1782/720 simplified gives 99/40
6. So, 72/45 + 42/48 = 99/40
   In mixed form: 219/40

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