Answers

Add 30/20 and 72/64

1^st number: 1 10/20, 2^nd number: 1 8/64

30/20 + 72/64 is 21/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 64 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 20 × 16 = 320,
   30/20 = 30 × 16/20 × 16 = 480/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   72/64 = 72 × 5/64 × 5 = 360/320
4. Add the two like fractions:
   480/320 + 360/320 = 480 + 360/320 = 840/320
5. 840/320 simplified gives 21/8
6. So, 30/20 + 72/64 = 21/8
   In mixed form: 25/8

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