Answers

Add 48/20 and 40/64

1^st number: 2 8/20, 2^nd number: 40/64

48/20 + 40/64 is 121/40.

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,
   48/20 = 48 × 16/20 × 16 = 768/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   40/64 = 40 × 5/64 × 5 = 200/320
4. Add the two like fractions:
   768/320 + 200/320 = 768 + 200/320 = 968/320
5. 968/320 simplified gives 121/40
6. So, 48/20 + 40/64 = 121/40
   In mixed form: 31/40

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