Add 9/8 and 45/40
1st number: 1 1/8, 2nd number: 1 5/40
9/8 + 45/40 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
9/8 = 9 × 5/8 × 5 = 45/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
45/40 = 45 × 1/40 × 1 = 45/40 - Add the two like fractions:
45/40 + 45/40 = 45 + 45/40 = 90/40 - 90/40 simplified gives 9/4
- So, 9/8 + 45/40 = 9/4
In mixed form: 21/4
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