Add 54/90 and 12/7
1st number: 54/90, 2nd number: 1 5/7
54/90 + 12/7 is 81/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 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 7 × 90 = 630,
12/7 = 12 × 90/7 × 90 = 1080/630 - Add the two like fractions:
378/630 + 1080/630 = 378 + 1080/630 = 1458/630 - 1458/630 simplified gives 81/35
- So, 54/90 + 12/7 = 81/35
In mixed form: 211/35
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