Answers

Add 12/60 and 42/64

12/60 + 42/64 is 137/160.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 64 is 960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 960
2. For the 1st fraction, since 60 × 16 = 960,
   12/60 = 12 × 16/60 × 16 = 192/960
3. Likewise, for the 2nd fraction, since 64 × 15 = 960,
   42/64 = 42 × 15/64 × 15 = 630/960
4. Add the two like fractions:
   192/960 + 630/960 = 192 + 630/960 = 822/960
5. 822/960 simplified gives 137/160
6. So, 12/60 + 42/64 = 137/160

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