Add 18/45 and 42/70
18/45 + 42/70 is 1/1.
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,
42/70 = 42 × 9/70 × 9 = 378/630 - Add the two like fractions:
252/630 + 378/630 = 252 + 378/630 = 630/630 - 630/630 simplified gives 1/1
- So, 18/45 + 42/70 = 1/1
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