Answers

Subtract 21/80 from 18/14

1^st number: 1 4/14, 2^nd number: 21/80

18/14 - 21/80 is 573/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 14 × 40 = 560,
   18/14 = 18 × 40/14 × 40 = 720/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   21/80 = 21 × 7/80 × 7 = 147/560
4. Subtract the two like fractions:
   720/560 - 147/560 = 720 - 147/560 = 573/560
5. In mixed form: 113/560

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