Answers

Add 90/28 and 56/40

1^st number: 3 6/28, 2^nd number: 1 16/40

90/28 + 56/40 is 323/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 28 × 10 = 280,
   90/28 = 90 × 10/28 × 10 = 900/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   56/40 = 56 × 7/40 × 7 = 392/280
4. Add the two like fractions:
   900/280 + 392/280 = 900 + 392/280 = 1292/280
5. 1292/280 simplified gives 323/70
6. So, 90/28 + 56/40 = 323/70
   In mixed form: 443/70

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