Answers

Subtract 21/30 from 49/56

49/56 - 21/30 is 7/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   49/56 = 49 × 15/56 × 15 = 735/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   21/30 = 21 × 28/30 × 28 = 588/840
4. Subtract the two like fractions:
   735/840 - 588/840 = 735 - 588/840 = 147/840
5. After reducing the fraction, the answer is 7/40

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