Add 84/63 and 12/70
1st number: 1 21/63, 2nd number: 12/70
84/63 + 12/70 is 158/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
84/63 = 84 × 10/63 × 10 = 840/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
840/630 + 108/630 = 840 + 108/630 = 948/630 - 948/630 simplified gives 158/105
- So, 84/63 + 12/70 = 158/105
In mixed form: 153/105
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