Answers

Add 70/40 and 63/28

1^st number: 1 30/40, 2^nd number: 2 7/28

70/40 + 63/28 is 4/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 28 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 40 × 7 = 280,
   70/40 = 70 × 7/40 × 7 = 490/280
3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
   63/28 = 63 × 10/28 × 10 = 630/280
4. Add the two like fractions:
   490/280 + 630/280 = 490 + 630/280 = 1120/280
5. 1120/280 simplified gives 4/1
6. So, 70/40 + 63/28 = 4/1

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