Add 72/70 and 18/9
1st number: 1 2/70, 2nd number: 2 0/9
72/70 + 18/9 is 106/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
18/9 = 18 × 70/9 × 70 = 1260/630 - Add the two like fractions:
648/630 + 1260/630 = 648 + 1260/630 = 1908/630 - 1908/630 simplified gives 106/35
- So, 72/70 + 18/9 = 106/35
In mixed form: 31/35
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