Answers

Subtract 90/30 from 98/70

1^st number: 1 28/70, 2^nd number: 3 0/30

98/70 - 90/30 is -8/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   98/70 = 98 × 3/70 × 3 = 294/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   90/30 = 90 × 7/30 × 7 = 630/210
4. Subtract the two like fractions:
   294/210 - 630/210 = 294 - 630/210 = -336/210
5. After reducing the fraction, the answer is -8/5

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