Add 90/63 and 15/20
1st number: 1 27/63, 2nd number: 15/20
90/63 + 15/20 is 61/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
90/63 = 90 × 20/63 × 20 = 1800/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
15/20 = 15 × 63/20 × 63 = 945/1260 - Add the two like fractions:
1800/1260 + 945/1260 = 1800 + 945/1260 = 2745/1260 - 2745/1260 simplified gives 61/28
- So, 90/63 + 15/20 = 61/28
In mixed form: 25/28
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