Add 72/45 and 21/48
1st number: 1 27/45, 2nd number: 21/48
72/45 + 21/48 is 163/80.
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,
72/45 = 72 × 16/45 × 16 = 1152/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
21/48 = 21 × 15/48 × 15 = 315/720 - Add the two like fractions:
1152/720 + 315/720 = 1152 + 315/720 = 1467/720 - 1467/720 simplified gives 163/80
- So, 72/45 + 21/48 = 163/80
In mixed form: 23/80
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