Final answer:
Roman Catholics traditionally fast on Ash Wednesday and Good Friday. Those aged 18 to 59 are obliged to fast. Unlike Catholic fasting, Muslims fast every day during Ramadan from sunup to sundown, including abstaining from water.
Step-by-step explanation:
Roman Catholics traditionally fast on two days: Ash Wednesday and Good Friday. For members of the Latin Catholic Church, the norms on fasting are obligatory from age 18 until age 59. During fasting times, a person may have one full meal along with two smaller meals that together should not equal a full meal. Additionally, the norms concerning abstinence from meat apply to those from age 14 onwards. Unlike the Catholic fast, Muslims observe Ramadan, where they fast every day from sunup to sundown, which includes not partaking in food or drink, including water.