Answers

Subtract 63/80 from 98/42

1^st number: 2 14/42, 2^nd number: 63/80

98/42 - 63/80 is 371/240.

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,
   98/42 = 98 × 40/42 × 40 = 3920/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   63/80 = 63 × 21/80 × 21 = 1323/1680
4. Subtract the two like fractions:
   3920/1680 - 1323/1680 = 3920 - 1323/1680 = 2597/1680
5. After reducing the fraction, the answer is 371/240
6. In mixed form: 1131/240

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