Answers

Subtract 72/98 from 1/70

1/70 - 72/98 is -353/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 98 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 70 × 7 = 490,
   1/70 = 1 × 7/70 × 7 = 7/490
3. Likewise, for the 2nd fraction, since 98 × 5 = 490,
   72/98 = 72 × 5/98 × 5 = 360/490
4. Subtract the two like fractions:
   7/490 - 360/490 = 7 - 360/490 = -353/490

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