Add 18/45 and 63/70
18/45 + 63/70 is 13/10.
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,
63/70 = 63 × 9/70 × 9 = 567/630 - Add the two like fractions:
252/630 + 567/630 = 252 + 567/630 = 819/630 - 819/630 simplified gives 13/10
- So, 18/45 + 63/70 = 13/10
In mixed form: 13/10
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