Answers

Subtract 90/70 from 30/50

1^st number: 30/50, 2^nd number: 1 20/70

30/50 - 90/70 is -24/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 70 is 350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 350
2. For the 1st fraction, since 50 × 7 = 350,
   30/50 = 30 × 7/50 × 7 = 210/350
3. Likewise, for the 2nd fraction, since 70 × 5 = 350,
   90/70 = 90 × 5/70 × 5 = 450/350
4. Subtract the two like fractions:
   210/350 - 450/350 = 210 - 450/350 = -240/350
5. After reducing the fraction, the answer is -24/35

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