Add 72/70 and 18/45
1st number: 1 2/70, 2nd number: 18/45
72/70 + 18/45 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 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 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Add the two like fractions:
648/630 + 252/630 = 648 + 252/630 = 900/630 - 900/630 simplified gives 10/7
- So, 72/70 + 18/45 = 10/7
In mixed form: 13/7
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