Add 28/35 and 21/54
28/35 + 21/54 is 107/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 35 × 54 = 1890,
28/35 = 28 × 54/35 × 54 = 1512/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
21/54 = 21 × 35/54 × 35 = 735/1890 - Add the two like fractions:
1512/1890 + 735/1890 = 1512 + 735/1890 = 2247/1890 - 2247/1890 simplified gives 107/90
- So, 28/35 + 21/54 = 107/90
In mixed form: 117/90
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