Add 7/18 and 42/70
7/18 + 42/70 is 89/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
7/18 = 7 × 35/18 × 35 = 245/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
42/70 = 42 × 9/70 × 9 = 378/630 - Add the two like fractions:
245/630 + 378/630 = 245 + 378/630 = 623/630 - 623/630 simplified gives 89/90
- So, 7/18 + 42/70 = 89/90
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