Add 63/8 and 45/20
1st number: 7 7/8, 2nd number: 2 5/20
63/8 + 45/20 is 81/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
63/8 = 63 × 5/8 × 5 = 315/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
45/20 = 45 × 2/20 × 2 = 90/40 - Add the two like fractions:
315/40 + 90/40 = 315 + 90/40 = 405/40 - 405/40 simplified gives 81/8
- So, 63/8 + 45/20 = 81/8
In mixed form: 101/8
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