Answers

Subtract 42/70 from 72/98

72/98 - 42/70 is 33/245.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 70 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   72/98 = 72 × 5/98 × 5 = 360/490
3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
   42/70 = 42 × 7/70 × 7 = 294/490
4. Subtract the two like fractions:
   360/490 - 294/490 = 360 - 294/490 = 66/490
5. After reducing the fraction, the answer is 33/245

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