Add 54/90 and 12/70
54/90 + 12/70 is 27/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
54/90 = 54 × 7/90 × 7 = 378/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
378/630 + 108/630 = 378 + 108/630 = 486/630 - 486/630 simplified gives 27/35
- So, 54/90 + 12/70 = 27/35
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