Answers

Subtract 48/80 from 28/70

28/70 - 48/80 is -1/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   28/70 = 28 × 8/70 × 8 = 224/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   48/80 = 48 × 7/80 × 7 = 336/560
4. Subtract the two like fractions:
   224/560 - 336/560 = 224 - 336/560 = -112/560
5. After reducing the fraction, the answer is -1/5

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