Add 42/16 and 54/90
1st number: 2 10/16, 2nd number: 54/90
42/16 + 54/90 is 129/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
42/16 = 42 × 45/16 × 45 = 1890/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
54/90 = 54 × 8/90 × 8 = 432/720 - Add the two like fractions:
1890/720 + 432/720 = 1890 + 432/720 = 2322/720 - 2322/720 simplified gives 129/40
- So, 42/16 + 54/90 = 129/40
In mixed form: 39/40
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