Add 20/45 and 90/48
1st number: 20/45, 2nd number: 1 42/48
20/45 + 90/48 is 167/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
20/45 = 20 × 16/45 × 16 = 320/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
90/48 = 90 × 15/48 × 15 = 1350/720 - Add the two like fractions:
320/720 + 1350/720 = 320 + 1350/720 = 1670/720 - 1670/720 simplified gives 167/72
- So, 20/45 + 90/48 = 167/72
In mixed form: 223/72
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