Answers

Subtract 14/7 from 42/80

1^st number: 42/80, 2^nd number: 2 0/7

42/80 - 14/7 is -59/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 7 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   42/80 = 42 × 7/80 × 7 = 294/560
3. Likewise, for the 2nd fraction, since 7 × 80 = 560,
   14/7 = 14 × 80/7 × 80 = 1120/560
4. Subtract the two like fractions:
   294/560 - 1120/560 = 294 - 1120/560 = -826/560
5. After reducing the fraction, the answer is -59/40

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