Add 12/63 and 72/70
1st number: 12/63, 2nd number: 1 2/70
12/63 + 72/70 is 128/105.
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,
12/63 = 12 × 10/63 × 10 = 120/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Add the two like fractions:
120/630 + 648/630 = 120 + 648/630 = 768/630 - 768/630 simplified gives 128/105
- So, 12/63 + 72/70 = 128/105
In mixed form: 123/105
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