Add 42/70 and 24/45
42/70 + 24/45 is 17/15.
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,
42/70 = 42 × 9/70 × 9 = 378/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
24/45 = 24 × 14/45 × 14 = 336/630 - Add the two like fractions:
378/630 + 336/630 = 378 + 336/630 = 714/630 - 714/630 simplified gives 17/15
- So, 42/70 + 24/45 = 17/15
In mixed form: 12/15
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