Answers

Subtract 80/20 from 42/48

1^st number: 42/48, 2^nd number: 4 0/20

42/48 - 80/20 is -25/8.

Steps for subtracting 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,
   80/20 = 80 × 12/20 × 12 = 960/240
4. Subtract the two like fractions:
   210/240 - 960/240 = 210 - 960/240 = -750/240
5. After reducing the fraction, the answer is -25/8

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