Answers

Add 70/63 and 42/90

1^st number: 1 7/63, 2^nd number: 42/90

70/63 + 42/90 is 71/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   42/90 = 42 × 7/90 × 7 = 294/630
4. Add the two like fractions:
   700/630 + 294/630 = 700 + 294/630 = 994/630
5. 994/630 simplified gives 71/45
6. So, 70/63 + 42/90 = 71/45
   In mixed form: 126/45

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