Answers

Subtract 49/80 from 49/42

1^st number: 1 7/42, 2^nd number: 49/80

49/42 - 49/80 is 133/240.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 42 × 40 = 1680,
   49/42 = 49 × 40/42 × 40 = 1960/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   49/80 = 49 × 21/80 × 21 = 1029/1680
4. Subtract the two like fractions:
   1960/1680 - 1029/1680 = 1960 - 1029/1680 = 931/1680
5. After reducing the fraction, the answer is 133/240

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