Add 63/4 and 72/90
1st number: 15 3/4, 2nd number: 72/90
63/4 + 72/90 is 331/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
63/4 = 63 × 45/4 × 45 = 2835/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
72/90 = 72 × 2/90 × 2 = 144/180 - Add the two like fractions:
2835/180 + 144/180 = 2835 + 144/180 = 2979/180 - 2979/180 simplified gives 331/20
- So, 63/4 + 72/90 = 331/20
In mixed form: 1611/20
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