Add 21/15 and 98/54
1st number: 1 6/15, 2nd number: 1 44/54
21/15 + 98/54 is 434/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
21/15 = 21 × 18/15 × 18 = 378/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
98/54 = 98 × 5/54 × 5 = 490/270 - Add the two like fractions:
378/270 + 490/270 = 378 + 490/270 = 868/270 - 868/270 simplified gives 434/135
- So, 21/15 + 98/54 = 434/135
In mixed form: 329/135
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