Answers

Add 63/70 and 90/50

1^st number: 63/70, 2^nd number: 1 40/50

63/70 + 90/50 is 27/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 50 is 350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 350
2. For the 1st fraction, since 70 × 5 = 350,
   63/70 = 63 × 5/70 × 5 = 315/350
3. Likewise, for the 2nd fraction, since 50 × 7 = 350,
   90/50 = 90 × 7/50 × 7 = 630/350
4. Add the two like fractions:
   315/350 + 630/350 = 315 + 630/350 = 945/350
5. 945/350 simplified gives 27/10
6. So, 63/70 + 90/50 = 27/10
   In mixed form: 27/10

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