Add 72/16 and 21/7
1st number: 4 8/16, 2nd number: 3 0/7
72/16 + 21/7 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
72/16 = 72 × 7/16 × 7 = 504/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
21/7 = 21 × 16/7 × 16 = 336/112 - Add the two like fractions:
504/112 + 336/112 = 504 + 336/112 = 840/112 - 840/112 simplified gives 15/2
- So, 72/16 + 21/7 = 15/2
In mixed form: 71/2
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