Answers

Subtract 48/90 from 3/70

3/70 - 48/90 is -103/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   3/70 = 3 × 9/70 × 9 = 27/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   48/90 = 48 × 7/90 × 7 = 336/630
4. Subtract the two like fractions:
   27/630 - 336/630 = 27 - 336/630 = -309/630
5. After reducing the fraction, the answer is -103/210

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