Add 12/70 and 90/63
1st number: 12/70, 2nd number: 1 27/63
12/70 + 90/63 is 8/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
90/63 = 90 × 10/63 × 10 = 900/630 - Add the two like fractions:
108/630 + 900/630 = 108 + 900/630 = 1008/630 - 1008/630 simplified gives 8/5
- So, 12/70 + 90/63 = 8/5
In mixed form: 13/5
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