Answers

Subtract 81/50 from 4/70

1^st number: 4/70, 2^nd number: 1 31/50

4/70 - 81/50 is -547/350.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 50 is 350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 350
2. For the 1st fraction, since 70 × 5 = 350,
   4/70 = 4 × 5/70 × 5 = 20/350
3. Likewise, for the 2nd fraction, since 50 × 7 = 350,
   81/50 = 81 × 7/50 × 7 = 567/350
4. Subtract the two like fractions:
   20/350 - 567/350 = 20 - 567/350 = -547/350

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