Add 18/45 and 45/70
18/45 + 45/70 is 73/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
18/45 = 18 × 14/45 × 14 = 252/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Add the two like fractions:
252/630 + 405/630 = 252 + 405/630 = 657/630 - 657/630 simplified gives 73/70
- So, 18/45 + 45/70 = 73/70
In mixed form: 13/70
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