Answers

Add 90/56 and 28/60

1^st number: 1 34/56, 2^nd number: 28/60

90/56 + 28/60 is 871/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 60 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   90/56 = 90 × 15/56 × 15 = 1350/840
3. Likewise, for the 2nd fraction, since 60 × 14 = 840,
   28/60 = 28 × 14/60 × 14 = 392/840
4. Add the two like fractions:
   1350/840 + 392/840 = 1350 + 392/840 = 1742/840
5. 1742/840 simplified gives 871/420
6. So, 90/56 + 28/60 = 871/420
   In mixed form: 231/420

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