Answers

Add 42/48 and 72/20

1^st number: 42/48, 2^nd number: 3 12/20

42/48 + 72/20 is 179/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 20 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 48 × 5 = 240,
   42/48 = 42 × 5/48 × 5 = 210/240
3. Likewise, for the 2nd fraction, since 20 × 12 = 240,
   72/20 = 72 × 12/20 × 12 = 864/240
4. Add the two like fractions:
   210/240 + 864/240 = 210 + 864/240 = 1074/240
5. 1074/240 simplified gives 179/40
6. So, 42/48 + 72/20 = 179/40
   In mixed form: 419/40

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