Add 81/90 and 63/8
1st number: 81/90, 2nd number: 7 7/8
81/90 + 63/8 is 351/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
81/90 = 81 × 4/90 × 4 = 324/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
63/8 = 63 × 45/8 × 45 = 2835/360 - Add the two like fractions:
324/360 + 2835/360 = 324 + 2835/360 = 3159/360 - 3159/360 simplified gives 351/40
- So, 81/90 + 63/8 = 351/40
In mixed form: 831/40
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