Add 20/45 and 81/8
1st number: 20/45, 2nd number: 10 1/8
20/45 + 81/8 is 761/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
20/45 = 20 × 8/45 × 8 = 160/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
81/8 = 81 × 45/8 × 45 = 3645/360 - Add the two like fractions:
160/360 + 3645/360 = 160 + 3645/360 = 3805/360 - 3805/360 simplified gives 761/72
- So, 20/45 + 81/8 = 761/72
In mixed form: 1041/72
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