Answers

Subtract 42/50 from 84/64

1^st number: 1 20/64, 2^nd number: 42/50

84/64 - 42/50 is 189/400.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 50 is 1600
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1600
2. For the 1st fraction, since 64 × 25 = 1600,
   84/64 = 84 × 25/64 × 25 = 2100/1600
3. Likewise, for the 2nd fraction, since 50 × 32 = 1600,
   42/50 = 42 × 32/50 × 32 = 1344/1600
4. Subtract the two like fractions:
   2100/1600 - 1344/1600 = 2100 - 1344/1600 = 756/1600
5. After reducing the fraction, the answer is 189/400

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