Add 48/60 and 70/21
1st number: 48/60, 2nd number: 3 7/21
48/60 + 70/21 is 62/15.
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,
48/60 = 48 × 7/60 × 7 = 336/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
70/21 = 70 × 20/21 × 20 = 1400/420 - Add the two like fractions:
336/420 + 1400/420 = 336 + 1400/420 = 1736/420 - 1736/420 simplified gives 62/15
- So, 48/60 + 70/21 = 62/15
In mixed form: 42/15
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