Add 42/8 and 54/45
1st number: 5 2/8, 2nd number: 1 9/45
42/8 + 54/45 is 129/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
42/8 = 42 × 45/8 × 45 = 1890/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
54/45 = 54 × 8/45 × 8 = 432/360 - Add the two like fractions:
1890/360 + 432/360 = 1890 + 432/360 = 2322/360 - 2322/360 simplified gives 129/20
- So, 42/8 + 54/45 = 129/20
In mixed form: 69/20
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