Add 45/72 and 48/21
1st number: 45/72, 2nd number: 2 6/21
45/72 + 48/21 is 163/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
45/72 = 45 × 7/72 × 7 = 315/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
48/21 = 48 × 24/21 × 24 = 1152/504 - Add the two like fractions:
315/504 + 1152/504 = 315 + 1152/504 = 1467/504 - 1467/504 simplified gives 163/56
- So, 45/72 + 48/21 = 163/56
In mixed form: 251/56
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