Answers

Subtract 72/80 from 84/70

1^st number: 1 14/70, 2^nd number: 72/80

84/70 - 72/80 is 3/10.

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,
   84/70 = 84 × 8/70 × 8 = 672/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   72/80 = 72 × 7/80 × 7 = 504/560
4. Subtract the two like fractions:
   672/560 - 504/560 = 672 - 504/560 = 168/560
5. After reducing the fraction, the answer is 3/10

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