Answers

Subtract 15/70 from 28/30

28/30 - 15/70 is 151/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   28/30 = 28 × 7/30 × 7 = 196/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   15/70 = 15 × 3/70 × 3 = 45/210
4. Subtract the two like fractions:
   196/210 - 45/210 = 196 - 45/210 = 151/210

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