Add 28/60 and 98/21
1st number: 28/60, 2nd number: 4 14/21
28/60 + 98/21 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
28/60 = 28 × 7/60 × 7 = 196/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
98/21 = 98 × 20/21 × 20 = 1960/420 - Add the two like fractions:
196/420 + 1960/420 = 196 + 1960/420 = 2156/420 - 2156/420 simplified gives 77/15
- So, 28/60 + 98/21 = 77/15
In mixed form: 52/15
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