Add 90/54 and 21/30
1st number: 1 36/54, 2nd number: 21/30
90/54 + 21/30 is 71/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
21/30 = 21 × 9/30 × 9 = 189/270 - Add the two like fractions:
450/270 + 189/270 = 450 + 189/270 = 639/270 - 639/270 simplified gives 71/30
- So, 90/54 + 21/30 = 71/30
In mixed form: 211/30
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