Add 45/8 and 20/90
1st number: 5 5/8, 2nd number: 20/90
45/8 + 20/90 is 421/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
45/8 = 45 × 45/8 × 45 = 2025/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
20/90 = 20 × 4/90 × 4 = 80/360 - Add the two like fractions:
2025/360 + 80/360 = 2025 + 80/360 = 2105/360 - 2105/360 simplified gives 421/72
- So, 45/8 + 20/90 = 421/72
In mixed form: 561/72
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