Add 45/8 and 72/90
1st number: 5 5/8, 2nd number: 72/90
45/8 + 72/90 is 257/40.
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,
72/90 = 72 × 4/90 × 4 = 288/360 - Add the two like fractions:
2025/360 + 288/360 = 2025 + 288/360 = 2313/360 - 2313/360 simplified gives 257/40
- So, 45/8 + 72/90 = 257/40
In mixed form: 617/40
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