Add 72/30 and 21/32
1st number: 2 12/30, 2nd number: 21/32
72/30 + 21/32 is 489/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
72/30 = 72 × 16/30 × 16 = 1152/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
21/32 = 21 × 15/32 × 15 = 315/480 - Add the two like fractions:
1152/480 + 315/480 = 1152 + 315/480 = 1467/480 - 1467/480 simplified gives 489/160
- So, 72/30 + 21/32 = 489/160
In mixed form: 39/160
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