Answers

Subtract 8/15 from 90/28

1^st number: 3 6/28, 2^nd number: 8/15

90/28 - 8/15 is 563/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 15 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 28 × 15 = 420,
   90/28 = 90 × 15/28 × 15 = 1350/420
3. Likewise, for the 2nd fraction, since 15 × 28 = 420,
   8/15 = 8 × 28/15 × 28 = 224/420
4. Subtract the two like fractions:
   1350/420 - 224/420 = 1350 - 224/420 = 1126/420
5. After reducing the fraction, the answer is 563/210
6. In mixed form: 2143/210

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