Answers

Subtract 7/80 from 80/70

1^st number: 1 10/70, 2^nd number: 7/80

80/70 - 7/80 is 591/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   80/70 = 80 × 8/70 × 8 = 640/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   7/80 = 7 × 7/80 × 7 = 49/560
4. Subtract the two like fractions:
   640/560 - 49/560 = 640 - 49/560 = 591/560
5. In mixed form: 131/560

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